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| Canon 7D - Page 2 | |
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| Posted: Tue Apr 17th, 2012 08:26 |
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11th Post |
Doug
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whiteiris wrote:Am I right I saying the 7d is a 'DX' size sensor and the 400mm is an' 'FX' lens...so the effective focal length on your shot was 600mm ish? It's slightly smaller than DX at 1.6x (insteadof 1.5x) crop This means the equivalent is 640mm Another advantage/disadvantage of the Canon system depending on whether you are shooting a wide or a telephoto Btw. I would strongly discourage purchasing af-s lenses as one day you will end up kicking yourself 
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| Posted: Tue Apr 17th, 2012 09:48 |
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12th Post |
jk
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Doug wrote: whiteiris wrote: Did you really mean this ? Btw. I would strongly discourage purchasing af-s lenses as one day you will end up kicking yourself. I am looking to get AFS on all my lenses. Unfortunately that also means G style lens but AFS is a real win for me.
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| Posted: Tue Apr 17th, 2012 10:26 |
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13th Post |
Doug
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jk wrote:Did you really mean this ? Apologies - late night typo - I meant Canon Ef-s lenses (Not Nikon AFs lenses) As you know, Nikon make DX lenses and these can be used (cropped) on FX cameras Canon make (equivalent) Ef-s lenses and these can NOT be used (cropped) on Canon Full Frame bodies the Ef-s mount is different to the EF mount Fortunately Sigma make Canon Mount DC lenses (as opposed to DG) which are comparable in performance to the Canon Ef-s range and these can be used (cropped) on Canon full frame bodies Canon make a mediocre 10-22 EFs, a great 60mm Macro EFs and an excellent 17-55 EFs*, but you would cry if you didn't realise at time of purchase that they could not be used on that future 5D that you might find at a bargain price *there are a few other EFs lenses from Canon including the pretty average 18-200 (worse than Nikons 18-200) along with Canon's worst lens - the 18-55 and a couple of others
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| Posted: Tue Apr 17th, 2012 11:24 |
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14th Post |
jk
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I know nothing about Canon cameras since the Canon F1n. Awesome camera that was owned by a flatmate of mine when I was at university. He had the Canon and I had the Nikon F2. Then a few years later came the Nikon F3 which was just like the Canon F1n but nicer.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Tue Apr 17th, 2012 13:38 |
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15th Post |
Iain
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Doug, I am making sure that my lens are all EF that can be used on any canon body.
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| Posted: Tue Apr 17th, 2012 19:04 |
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16th Post |
Doug
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If you feel you need a lens like the 10-22, I recommend that you purchase the Sigma equivalent One day you might get a 5D (MkIV perhaps) and then you will be glad of the extra resolution Unfortunately, AFAIK, you must shoot a Full Frame image then crop later since I'm not aware of Canon supporting the method used in DX crop mode on Nikon FX cameras (DX Crop - in camera crop with viewfinder darkening to permit the capture of 15MP images at 1.5x magnification. The main disadvantage is the smaller viewfinder area available and the rearrangement of the, thankfully many, focus points) DX crop allows a Nikon D800 to shoot with a 400mm as though it's a 600mm similar to choosing a 7D with a 400mm (of course the 7D is much cheaper)
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| Posted: Wed Apr 18th, 2012 11:39 |
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17th Post |
Iain
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Until the D800 the DX crop mode on FF was a waste of time in my opinion as it reduced the mp's too much.
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| Posted: Wed Apr 18th, 2012 11:46 |
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18th Post |
Iain
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Am I the first to have a double post. Mods please fix. Thanks.
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| Posted: Wed Apr 18th, 2012 12:30 |
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19th Post |
Robert
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Done Iain! Yes I think that was the first, so the double post lives on...
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| Posted: Thu Apr 19th, 2012 02:54 |
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20th Post |
blackfox
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you will love that setup for a long time ian ,its good and fast ,canons 7d burst mode is to die for ,the 400 f5.6 can be used all day long at 5.6 without a missed shot ,the only problems being you cannot extend the range via a t/c and the 3.5 mtr close focussing will grate on your nerves after a while . if by any chance your after a good buy my lad is selling a sigma 100-300 f2.8 os only six months old hardly used (its to heavy for him) at a good open to offers price .if your interested either p.m me for details or you can see it advertised on "bird forum"
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