wide angle on APS-C sensor DSLR

Kin Lau · November 2nd, 2010, 05:46 PM

That was wide open.

Rob deJong · November 22nd, 2010, 10:38 AM

OK thanks.
Is there something as good as the canon diopter on the market with a 67 mm thread. I couldn't find it.
If bot, would it be better to get a 67-77 step up or by a close up filter from another brand?

Trevor Dennis · December 8th, 2010, 05:22 AM

It's a bugger how these factors sneak up and catch you out. I use Canon 1Ds3 and 1D4 bodies for stills photography, and wanted an ultrawide for the 1D4 (APS-H or 1.3) but there is very little choice. There are plenty for APS-C, but other than the Sigma 10-22mm I am not going to be able to shoot video as wide as I'd like to with the 1D4. The thing I had not even thought about this being a problem until it became a problem - if you know what I mean.

Steve Oakley · December 12th, 2010, 12:45 PM

any of these adapters in front of the lens will cause problems. if you want to use a close up diopter I'd only recommend a #1. anything more will make for aberrations that will be objectionable.

the best solution, and also cheaper solution is extensions tubes. you can get a 3 tube set ( 12-15mm, 21, 32-36 ) set with lens coupling pins for iris and focus for about $80 on ebay. be sure you get ones with METAL not plastic lens mounts. the shortest one will probably work fine, but if you need closer, you can change tubes or add them in combination. needless to say DoF becomes extremely shallow and a macro focusing rail might also be on your shopping list.

I've use a tamron 17-50 which focuses really close to start with this way, as well as a OM 50 1.4 with good results.

you'll find even F16 to be shallow.

if you want to get close and far away in focus, try a SPLIT diopter, 1/2 filter 1/2 nothing.

December 12th, 2010, 12:45 PM	#19
Steve Oakley Trustee Join Date: Apr 2006 Location: United States Posts: 1,158	any of these adapters in front of the lens will cause problems. if you want to use a close up diopter I'd only recommend a #1. anything more will make for aberrations that will be objectionable. the best solution, and also cheaper solution is extensions tubes. you can get a 3 tube set ( 12-15mm, 21, 32-36 ) set with lens coupling pins for iris and focus for about $80 on ebay. be sure you get ones with METAL not plastic lens mounts. the shortest one will probably work fine, but if you need closer, you can change tubes or add them in combination. needless to say DoF becomes extremely shallow and a macro focusing rail might also be on your shopping list. I've use a tamron 17-50 which focuses really close to start with this way, as well as a OM 50 1.4 with good results. you'll find even F16 to be shallow. if you want to get close and far away in focus, try a SPLIT diopter, 1/2 filter 1/2 nothing. __________________ Steve Oakley DP • Audio Mixer • Editor • Colorist http://stevenoakley.com

November 2nd, 2010, 05:46 PM	#16
Kin Lau Major Player Join Date: Mar 2009 Location: Ottawa, ON Posts: 385	That was wide open.

November 22nd, 2010, 10:38 AM	#17
Rob deJong Regular Crew Join Date: May 2009 Location: Saly Hungary Posts: 169	OK thanks. Is there something as good as the canon diopter on the market with a 67 mm thread. I couldn't find it. If bot, would it be better to get a 67-77 step up or by a close up filter from another brand?

December 8th, 2010, 05:22 AM	#18
Trevor Dennis Major Player Join Date: Dec 2010 Location: New Zealand, Rapaura (near Blenheim) Posts: 434	It's a bugger how these factors sneak up and catch you out. I use Canon 1Ds3 and 1D4 bodies for stills photography, and wanted an ultrawide for the 1D4 (APS-H or 1.3) but there is very little choice. There are plenty for APS-C, but other than the Sigma 10-22mm I am not going to be able to shoot video as wide as I'd like to with the 1D4. The thing I had not even thought about this being a problem until it became a problem - if you know what I mean.