Moderated by: chrisbet,
Nikon 88N cap  Rate Topic 
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Posted by chrisbet: Sat Jul 16th, 2022 15:06 1st Post
Anyone got an unwanted 88N screw on lens cap for sale?



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Posted by Eric: Sat Jul 16th, 2022 22:26 2nd Post
Don’t think I recognise that code…what lens is it for? Presumable an old one if it’s screw fitting?

Does it need to be that one? Would not a suitably sized push on cap suffice?



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Eric


Posted by chrisbet: Sat Jul 16th, 2022 22:30 3rd Post
It is for a Nikkor C 500mm f8 reflex. There is one on Ebay but they want £50 for it! I haven't found a suitable alternative - closest is a 86mm pinch cap that may fit.



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Posted by Eric: Sat Jul 16th, 2022 22:46 4th Post
chrisbet wrote:
It is for a Nikkor C 500mm f8 reflex. There is one on Ebay but they want £50 for it! I haven't found a suitable alternative - closest is a 86mm pinch cap that may fit.





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Yes I saw that one on eBay. Make him an offer? Can’t be many people wanting one…especially at that price.
I was going to suggest an 86mm grip cap but wondered what the depth of the old thread was and if the lens cap thickness would clear the glass?

presumably the 88 is the thread size?

wonder if a uv filter might serve same protection purpose…even if sacrificial?



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Eric


Posted by chrisbet: Sat Jul 16th, 2022 22:57 5th Post
Glass is about 1/2inch down from the filter threads. There isn't an offer option on the auction, I'll have to message him ....

Can't find any 88mm UV filters either - just a 2x yellow! The lens takes 39mm filters at the back of the lens.



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Posted by jk: Sun Jul 17th, 2022 06:44 6th Post
Best thing I can suggest is this.
https://www.ebay.co.uk/itm/324686849609?

At £4 it seems like a steal.

Alternative is to look for a plastic push on cap (my Tamron 500mm has one like that).



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Posted by jk: Sun Jul 17th, 2022 06:46 7th Post
For cat lenses it is recommended that you dont put filters on the front as it really degrades the image!



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Posted by Eric: Sun Jul 17th, 2022 07:09 8th Post
chrisbet wrote:
Glass is about 1/2inch down from the filter threads. There isn't an offer option on the auction, I'll have to message him ....

Can't find any 88mm UV filters either - just a 2x yellow! The lens takes 39mm filters at the back of the lens.
Does it matter what the filter colour is ….as you could remove it, like the lens cap, to use the lens?
You could print an image of the Nikon cap on card and stick it to the filter glass:lol:



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Eric


Posted by Eric: Sun Jul 17th, 2022 07:10 9th Post
jk wrote:
For cat lenses it is recommended that you dont put filters on the front as it really degrades the image! I meant as a screw OFF lens cover….if you have to unscrew the lens cap each time, why not a filter?

OK, it doesnt offer same impact protection as a metal or plastic cap so stick some plastic or rigid foam on the glass.
Signed Heath Robinson



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Eric


Posted by chrisbet: Sun Jul 17th, 2022 07:43 10th Post
jk wrote:
Best thing I can suggest is this.
https://www.ebay.co.uk/itm/324686849609?

At £4 it seems like a steal.

Alternative is to look for a plastic push on cap (my Tamron 500mm has one like that).
Yup - I have one of those on order for £2.94! :thumbs:



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Posted by chrisbet: Fri Jul 29th, 2022 08:31 11th Post
Update - not only did I manage to secure a mint front cap but also the original lens hood for the lens, so that is a complete 500mm lens in excellent condition for less than £100 :-)



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Posted by jk: Fri Jul 29th, 2022 08:39 12th Post
Looks like you have it attached to a FM or FE as well.
Enjoy the lens.



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Posted by chrisbet: Fri Jul 29th, 2022 08:43 13th Post
It's an FE - another recent acquisition together with a 50mm f2 Nikkor H - for less than £50. The FE had a stuck shutter release, now fixed :thumbs:



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Posted by jk: Fri Jul 29th, 2022 14:27 14th Post
Well done.
If you have a good mechanical knowledge then many of these things can be fixed with a bit of time and patience.



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Posted by chrisbet: Sun Jul 31st, 2022 14:02 15th Post
Would this lens work with a TC 200 teleconverter or would it suffer from vignetting? I know the f number will drop to 11...



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If it is broken it was probably me ....


Posted by jk: Wed Aug 3rd, 2022 07:08 16th Post
chrisbet wrote:
Would this lens work with a TC 200 teleconverter or would it suffer from vignetting? I know the f number will drop to 11... Should do but Nikon put lugs on some TCs that stopped certain lens combos.  There are hacks that have been used, filing away of the lugs.



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