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| Moderated by: chrisbet, | ||
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chrisbet
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Was hunting for an affordable D850 to fix up but even ones with top and front casings smashed were going for best part of £500! But I have just picked up a D810 for £200 - has had the lens mount snapped off but enough of the mirror box front face remains to get a replacement spring and mount correctly aligned. The camera has arrived so I just wait for the spares to turn up. I have black structural methylacrylate glue which will reconstruct the missing parts and secure the mount screws in their holes. If that doesn't work out then I can get a replacement box and have the fun of swapping it all over - full dismantle - I will try and avoid that if I can  Testing with a spare battery shows everything else is OK and it has a 73k shutter count.  Click here to comment on this image. |
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jk
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Hope you can get it back together and working well. Problem is the more pixels the more finicky the set up is. I still have my D810 as backup for my D850 as I got rid of my D600 when I got my Z9. |
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novicius
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What happened,do you know ? |
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chrisbet
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No, I don't know what happened but the damage indicates that the lens was pulled off in an upward direction - the bottom mount screw hole is intact, the two either side are broken halfway down and the top two are completely missing. There is no damage to the outside of the camera so either it fell on the lens or something fell on it. Either way, all the electronics work and once I get the mount reattached I'll see if the lens communicates with the camera OK. Fortunately Nikon made the box with 8mm deep screw holes for a 6mm screw and the mount is another 1 - 2 mm, so the plan is to use 8mm M2 replacement screws which means, at least for the bottom screws they will screw into unbroken plastic for some of the length. The methylacrylate glue is 2 part and incredibly strong - I use it to glue broken plastic car bumpers back together! |
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Eric
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chrisbet wrote:No, I don't know what happened but the damage indicates that the lens was pulled off in an upward direction - the bottom mount screw hole is intact, the two either side are broken halfway down and the top two are completely missing. It must have taken a heck of a whack. Or the D600 mount isn’t as robust. I was photographing a leisure centre some years ago. While waiting for the swimming pool to be cleared of people (to get still water) I went up 2 floors to the gym and was taking photos there, when I got the call…. “still water”. I raced down the stone stairwell with my D3 and 24-70 lens loosely wedged on my bag. Centrifugal force took over as I cornered at speed and the whole combo flew across the landing and smashed against the wall. Bits everywhere.  I scooped up the bits put them in the car and grabbed my back up kit only to find some fat git had ignored the request to stay out of water for 10mins and jumped in. Fortunately his ripples hadn’t reached the deep end so I later photoshopped out him and his tsunami. Took the mess to ACS on my way home and having miraculously saved all the bits, David was able to reassemble the lens while I waited. I actually felt it was a better lens after his rebuild! But the point was……the D3 mount was totally undamaged ( ok the body had a couple of chunks missing) …. the lens seemed to be the crumble zone. |
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chrisbet
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The D810 box is plastic, unlike the D800 / 850 / D3 which are alloy |
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Iain
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I have bashed and dropped my D3 and D4 and they never flickered and just kept on working. Having never had any dealings with a Z9 I don't know how it would compare in a similar situations. |
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novicius
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I remember Eric`s hair raising D3 / 24-70 encounter with said staircase...remembered it vividly when my own D3S tumbled on the wooden kitchen floor with a 24-70 vr on it,luckily nothing happened ( the floor got dented )....I hope that you can fix it, as it sounds do-able. |
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chrisbet
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The mount turned up today and is temporarliy fixed for testing - camera working fine with G type lens but fEE with D types - issue on the aperture ring methinks .... But here is a pic taken with my one and only G lens  Click here to comment on this image. |
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Eric
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chrisbet wrote:The mount turned up today and is temporarliy fixed for testing - camera working fine with G type lens but fEE with D types - issue on the aperture ring methinks .... That looks excellent. Well done. Definitely beyond my skill set.  |
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Eric
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novicius wrote:I remember Eric`s hair raising D3 / 24-70 encounter with said staircase...remembered it vividly when my own D3S tumbled on the wooden kitchen floor with a 24-70 vr on it,luckily nothing happened ( the floor got dented )....I hope that you can fix it, as it sounds do-able. I still wake up in the middle of the night in a cold sweat. |
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chrisbet
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Still waiting on the spring that goes under the mount and three more screws to be fitted but "looking" better! Click here to comment on this image. |
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jk
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chrisbet wrote:The mount turned up today and is temporarliy fixed for testing - camera working fine with G type lens but fEE with D types - issue on the aperture ring methinks .... If you get the FEE error that implies that the little lug on the AFD lens is not engaged. Is that your assumption/assessment as well? I can send you some pictures of the throat of my D810 if that helps. |
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novicius
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Ooh, Well Done !....and now surely the Missus will understand that G-lenses need to be acquired.... |
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chrisbet
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Thanks for the offer JK, my D610 is exactly to same as the D810 in this area - many of the parts are interchangeable. The issue lies much deeper than the tag on the ring - I am a perfectionist when it comes to mechanical things and further (inevitable) dismantling and inspection reveals, as I suspected, a problem with the F-FO base plate module - it has been damaged and needs replacing - already on order from the US!  Click here to comment on this image. |
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jk
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Well done at finding the issue. You should be able to source parts from Nikon UK or an approved repairer. Have you tried ACS in Norfolk? Both Eric and I have used them in the past. Very good service. |
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chrisbet
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Thanks for the suggestion but I have already sourced an original Nikon replacement. Closer inspection of the damage suggests to me now that this wasn't the result of a fall but maybe a jammed lens that someone attempted to remove themselves by inserting a sharp object between lens and camera. There are a few reports on the web about Tamron lenses being prone to loose mount screws that then jam the lens on its mount. |
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Iain
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Eric wrote:That looks excellent. Well done. Definitely beyond my skill set. And mine too. Looks like you will get there Chris. |
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Bob
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chrisbet wrote:Was hunting for an affordable D850 to fix up but even ones with top and front casings smashed were going for best part of £500! You might like to take a look at this: https://www.mdpi.com/1996-1944/16/9/3386 .It's a paper on the material properties of a polycarbonate material |
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chrisbet
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There are plastics and there are plastics ... Nikon says the plastic used in the mirror box is carbon fibre reinforced. The design has its limitations, it may reduce weight and shutter vibrations but the design is flawed, the screws holding the mount in place are short and skinny, the plastic is finely moulded and liable to break if subjected to excessive force. Longer screws threaded into a nut imbedded deeper in the moulding would be better and spread shock forces. Better still would be a front "plate" carrying the mount which could be changed without total disassembly of the entire camera! The magnesium casting of the D800 / 850 and D series is much more robust. Just don't drop D810s! |
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Bob
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chrisbet wrote:There are plastics and there are plastics ... Nikon says the plastic used in the mirror box is carbon fibre reinforced. The whole assembly is most likely the product of many hours of C.A.D. modelling. If Nikon went as far as defining a loading scenario i.e. what would it take to break it - then the results are only as good as the f.e. mathematical model, boundary conditions etc and the material properties used, which is very difficult with grp due to the random orientation of the fibres. So, as you say, the bottom line is - don't drop 'em. |
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chrisbet
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A look inside - Click here to comment on this image. The box mounts are now built up and waiting for 1.8mm drill to drill out the screw holes - screws and F-FO unit on way from Nikon. |
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Eric
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That looks quite spaced out for camera inners. When I changed my D70 low pass filter to IR it was like open heart surgery. I had a photography mate swabbing my brow and standing by with oxygen. Never again. Mind you it was a camera I bought new, so the pressure was on my Thrift Gland not to mess up. lol |
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chrisbet
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99% of the gubbins is crammed in behind and both sides of the mirror box - thankfully it is straightforward to remove the front casing - anything more needs the back and top off and then you start pulling ribbon cables and connectors and I know from my lense fixing escapades that that can lead to issues of broken ribbons which are a sod to fix, |
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Eric
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chrisbet wrote:99% of the gubbins is crammed in behind and both sides of the mirror box - thankfully it is straightforward to remove the front casing - anything more needs the back and top off and then you start pulling ribbon cables and connectors and I know from my lense fixing escapades that that can lead to issues of broken ribbons which are a sod to fix, Ah yes…I went in from the back  I did have one ribbon connector that didn't reseat properly. I had to open her up again to add to the stress. Second time it all worked fine. After a few test frames in the back garden, this was a quick trip to Castle Rising for probably my first IR photo....certainly the oldest surviving!!!  Click here to comment on this image. |
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Eric
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I stand corrected! This is older, number 5, ivy up a factory fence near my mates house ...when I dropped him off after the surgery. 2006! Bl**dy hell 19 years Ive been doing IR. That is scary.  Click here to comment on this image. |
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chrisbet
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No surprise it was not working- broken in 5 pieces! Just waiting for new part from Nikon. Click here to comment on this image. The box has been repaired and new screw holes drilled. The f-fo pcb just sticks on with double sided tape and solders onto the ribbon cable.  Click here to comment on this image. |
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Eric
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Hey Chris....if you can find a D850 in need of refurb next. I might be your first customer.  |
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chrisbet
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I thought you had an 850? |
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Eric
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chrisbet wrote:I thought you had an 850? No…I sold it when going to Sony. My only photographic regret. |
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novicius
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I am loyal to Nikon...I even have a bad conscience when I go rogue getting a non-Nikkor.. |
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chrisbet
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I have a Canon Ixus, small and convenient when travelling. My main cameras have always been Nikon - from FM to D810 (soon), but for video I have a Canon XL1S and more recently a Sony PXW FS5, film super 8 Bell & Howell - horses for courses! |
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chrisbet
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While waiting for the parts, I turned my attention to a 28mm f2.8 ai Nikkor that I acquired essentially for free when buying an FM - the rear glass was badly scored ( these are very vulnerable as they protrude from the mount quite a lot) I managed to swap a non ai 50mm f1.4 for another 28mm f2.8 which had been dropped and damaged the front ring but the rear glass was perfect - quick swap over and focus adjustment and the now pretty perfect 28mm sold this evening making £90 - 100% profit on the deal - just needed to be patient for the right parts at the right price! Click here to comment on this image. Click here for EXIF data  Click here to comment on this image. Click here for EXIF data |
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Eric
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chrisbet wrote:While waiting for the parts, I turned my attention to a 28mm f2.8 ai Nikkor that I acquired essentially for free when buying an FM - the rear glass was badly scored ( these are very vulnerable as they protrude from the mount quite a lot) I managed to swap a non ai 50mm f1.4 for another 28mm f2.8 which had been dropped and damaged the front ring but the rear glass was perfect - quick swap over and focus adjustment and the now pretty perfect 28mm sold this evening making £90 - 100% profit on the deal - just needed to be patient for the right parts at the right price! Well done. So two wrongs do make a right? |
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chrisbet
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Sort of - more like a cut and shut but a bit more refined! |
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chrisbet
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Just acquired a D850 as well - had a Tamron lens fitted that could not be removed. Careful examination suggested to me that one of the lens mount screws had been pulled out by the lens being bent upwards and had fallen into the AF drive hole effectively locking the lens to the body. It was a no brainer to sacrifice the damaged lens, the zoom is broken anyway, so a little judicious prying around the plastic base had the cover snapped off and then I could get in to remove the loose screw.  Click here to comment on this image. Click here for EXIF data The camera is undamaged and everything seems to work normally - however the shutter count is huge - 736,770!  Click here to comment on this image. Click here for EXIF data |
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jk
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Great find. Well the shutter is meant to last to at least 750k if I remember correctly. The shutter from the D810 will also work in the D850 I guess. The AF in the D850 is the best in a DSLR in my opinion. |
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Eric
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Hey Chris….have they got the decimal point in the wrong place? https://www.ebay.co.uk/itm/167784265650?_skw=nikon+d850&itmmeta=01K4WR1D8T211S332GR0ZT9S9V&hash=item2710b8b7b2%3Ag%3AEjQAAeSwuRtowrhZ&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1euH7FWw4ByIgqsa7e0N094LX4wWysRpdRVLRVCXIMrwM1%2F5c8MW%2BlPvYItOBh1tTZsEhy5gTcGdgc9l8YoRHPAqV%2FwOGKEXilhQLhubSSrkjCSeDBhecgOwrL%2BMTawdvCOOMuqrMa4jBXM2Xq6uJRlvBLCBdnWEMEpPV2hX4Q%2BUOuBC69W0zL36dqM3dDC72IB09ssN9%2BxZjanT484oLCN6gS7YozB1VSErirmMcbmF2UtazCmZ2Wo5IQ89AT3AAU%3D%7Ctkp%3ABk9SR8jUhZinZg&LH_ItemCondition=3000 |
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chrisbet
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No - £99.99 is the STARTING bid - the auction has 2 days 19 hrs to run. Most savvy bidders use an auction sniping tool (I do) so their bids are placed in the last few seconds of the auction. You may well see a few bids before them, but it will skyrocket at the end - proabably with a winning bid around £1000 - the median price over the last 90 days is £1014. I stay away from anything located abroard, Japan, USA, Germany - not only is postage expensive, you get hit with VAT at 20% on top of total price including postage. I buy cheap and local - even if it turns out to be uneconomical to fix if needed, I can still turn it round as parts or complete to someone dafter than me! |
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Iain
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Eric, The Z8 can do everything the D850 can do but silently. |
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chrisbet
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Lol - the 850 does silent too - front electronic curtain. |
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Iain
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chrisbet wrote:Lol - the 850 does silent too - front electronic curtain. Not at 30fps. |
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Eric
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Iain wrote:Eric, The Z8 can do everything the D850 can do but silently. That’s good to know. I am not actually in the market to change cameras. I am happy getting to know the Fuji and using the Sony. I just cannot justify switching camera systems any more, as it’s all the lenses as well. Now if I win the lottery…who knows.  |
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chrisbet
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Iain wrote:Not at 30fps. In movie mode it does 60 fps at 1920 × 1080 and 1280 × 720 and 120 fps in slomo  |
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chrisbet
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The cheeky thing I found out today is that the 850 records electronic shutter actuations along with the mechanical shutter actuations as one total figure so I guess only a service centre can tell you how many of each have happened. |
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chrisbet
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First test photo with D850 and 28-70 f2.8 - not much wrong with the shutter I think. Click here to comment on this image. Click here for EXIF data |
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chrisbet
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The Nikon parts delivery for the 810 is due today - the D610 is already up for sale and the D810 will follow once tested and OK - should easily cover the cost of the 850 |
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jk
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D810 is a good backup for the D850. |
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Eric
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chrisbet wrote:The Nikon parts delivery for the 810 is due today - the D610 is already up for sale and the D810 will follow once tested and OK - should easily cover the cost of the 850 You should have a lot of fun working with that D850. Well done. |
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chrisbet
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I might have to find a bit of 1/2" thick foam to fit in my hard box - the 610 sat nicely in the bottom but the 850 is too wide and has to go on its side. I like keeping the lens on the body so it is ready to go in a hurry! Click here to comment on this image. Click here for EXIF data |
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novicius
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Nice looking package,such a fine presentation should sell easy. |
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Eric
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chrisbet wrote:I might have to find a bit of 1/2" thick foam to fit in my hard box - the 610 sat nicely in the bottom but the 850 is too wide and has to go on its side. I like keeping the lens on the body so it is ready to go in a hurry! Strange Nikon don’t have more ullage in their branded case. I presume a pro DX series camera wouldn’t fit either? I never like using “steal me” straps and cases. I did have an old aluminium camera case that I left just inside the door of my studio. The building had the burglar alarm inside rather than on the outside.The idea being, no one responded to burglar alarms going off anymore, but a mega decibel alarm going off indoors was too painful to stay in there. The perpetrator might grab the nearest looking bit of gear and leg it. The aluminium camera case was full of bricks. In over 25years, no one broke in or stole the case. Still got it somewhere, but it’s probably too heavy for me to lift now! Canvas bags are much better. |
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chrisbet
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When travelling I have an old soft padded bag that holds my kit. The posh cases stay at home under the watchful eye you commented on This morning I got the new F FO pcu in place - comes with its own sticky stuff on the back - and soldered in to the ribbon cable -  Click here to comment on this image. Click here for EXIF data Then I got the tricky contact ring, spring and roller fitted - tested my patience somewhat!  Click here to comment on this image. Click here for EXIF data |
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chrisbet
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Project finished - pair of resurrected Nikons - Click here to comment on this image. Click here for EXIF data |
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Eric
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An impressive brace. Well done…and quick too! Are you going to get dual belt holsters for them?  Back in the day I tried a chest holster for one body and a hip holster for the other. Was doing some motorsport photography so wanted two bodies/ different lens combos to hand. I spent most of the day either pulling my trousers up or rebuttoning my shirt…not to mention getting a sweaty back. They quickly went in the bin! I hate straps and such….much prefer holding the camera in the hand ( hence my obsession with one camera/lens combo and lightweight). |
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chrisbet
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Straps always get in the way for me - i usually carry the camera on the tips of my fingers, sideways, with my thumb just below the rear control wheel so it is just a matter of swinging my arm up to use the camera. Holding the camera with an arm straight down is least exhausting. That Ebay D850 went for £810 - not bad if it is OK! The only downside to the 850 is that I have had to shell out £45 for a good used SB600 as there is no onboard flash. More things to learn about - life never gets simpler! |
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Eric
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chrisbet wrote:Straps always get in the way for me - i usually carry the camera on the tips of my fingers, sideways, with my thumb just below the rear control wheel so it is just a matter of swinging my arm up to use the camera. Holding the camera with an arm straight down is least exhausting. Never liked using on camera flash…consequently I wasn’t very good at it. I could always see it was artificial light …and that spoilt it for me. Studio strobes, even on location, gave more pleasing light but were a pain to cart about…so I stopped taking those commissions as well. |
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chrisbet
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I have been using flash since you had to stick a replaceable 'one use' bulb in a holder Bouncing the flash produces a more acceptable result than direct which flattens everything. |
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| A small amount of member data is captured and held in an attempt to reduce spammers and to manage users. This site also uses cookies to ensure ease of use. In order to comply with new DPR regulations you are required to agree/disagree with this process. If you do not agree then please email the Admins using info@nikondslr.uk Thank you. |