08-30-2010, 05:57 PM
[quote name='wim' timestamp='1283118283' post='2318']
The reason to suggest a Nikon mount lens plus a Nikon->Canon adapter, is that the Nikon register distance of the lens mount (the lens mount to sensor distance so to speak), is longer than that of the Canon lens mount, therefore allowing for a piece of metal to be stuck in between lens and Canon lens mount and still allowing for infinity focus on a Canon body. If you'd add a mount adapter to a Canon mount lens for use on a Canon body, you'd effectively be using an extension tube, IWd, you can only focus at close distances, no longer at infinity. In short an adapter with a focus confirmation chip for a Canon mount lens is not available, as it defeats the object really.
This means your only solution now is to glue a chip to the lens mount yourself.
Here's one for sale: [url="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220630037320"]http://cgi.ebay.com/...em=220630037320[/url]
A slightly maller one, with better finish: [url="http://cgi.ebay.co.uk/focus-confirm-chip-4-EOS-450d-400d-450d-40d-30d-50d-5D-/200285249012?cmd=ViewItem&pt=Lens_Accessories&hash=item2ea1ee5df4"]http://cgi.ebay.co.u...=item2ea1ee5df4[/url]
Complete with alignment template and instructions: [url="http://store.tagotech.com/product_info.php?products_id=139"]http://store.tagotec...products_id=139[/url] (personally, I would go for this one <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />; good feedback from people I know)
Here is one attached: [url="http://photography-on-the.net/forum/showpost.php?p=10532595&postcount=66"]http://photography-o...95&postcount=66[/url]
And you can read a bit more here as well: [url="http://www.birdforum.net/showthread.php?t=173691"]http://www.birdforum...ad.php?t=173691[/url] (just read a bit further down as to glue used etc.).
HTH, kind regards, Wim
[/quote]
Wim, you are a legend. Thank you very much for the detailed (hopefully foolproof) information. I will be sure to let you know how I got on.
Thanks again for educating me, now I think I finally understand and shall go look at those links you've kindly provided.
You've saved me a helluva lot of running around websites and probably a couple of quid too.
If I ever get the lens chipped and manage to take some half decent pics with it, I shall dedicate them to you. <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='' /> <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />
The reason to suggest a Nikon mount lens plus a Nikon->Canon adapter, is that the Nikon register distance of the lens mount (the lens mount to sensor distance so to speak), is longer than that of the Canon lens mount, therefore allowing for a piece of metal to be stuck in between lens and Canon lens mount and still allowing for infinity focus on a Canon body. If you'd add a mount adapter to a Canon mount lens for use on a Canon body, you'd effectively be using an extension tube, IWd, you can only focus at close distances, no longer at infinity. In short an adapter with a focus confirmation chip for a Canon mount lens is not available, as it defeats the object really.
This means your only solution now is to glue a chip to the lens mount yourself.
Here's one for sale: [url="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220630037320"]http://cgi.ebay.com/...em=220630037320[/url]
A slightly maller one, with better finish: [url="http://cgi.ebay.co.uk/focus-confirm-chip-4-EOS-450d-400d-450d-40d-30d-50d-5D-/200285249012?cmd=ViewItem&pt=Lens_Accessories&hash=item2ea1ee5df4"]http://cgi.ebay.co.u...=item2ea1ee5df4[/url]
Complete with alignment template and instructions: [url="http://store.tagotech.com/product_info.php?products_id=139"]http://store.tagotec...products_id=139[/url] (personally, I would go for this one <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />; good feedback from people I know)Here is one attached: [url="http://photography-on-the.net/forum/showpost.php?p=10532595&postcount=66"]http://photography-o...95&postcount=66[/url]
And you can read a bit more here as well: [url="http://www.birdforum.net/showthread.php?t=173691"]http://www.birdforum...ad.php?t=173691[/url] (just read a bit further down as to glue used etc.).
HTH, kind regards, Wim
[/quote]
Wim, you are a legend. Thank you very much for the detailed (hopefully foolproof) information. I will be sure to let you know how I got on.
Thanks again for educating me, now I think I finally understand and shall go look at those links you've kindly provided.
You've saved me a helluva lot of running around websites and probably a couple of quid too.
If I ever get the lens chipped and manage to take some half decent pics with it, I shall dedicate them to you. <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='
' /> <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='' />