Cheapest option for a 20mm or wider lens with f/2.0 or lower capability?

M

maxsideburn

Member
As the title says, even in vintage lenses what would be my cheapest option to get something 20mm or wider that has an aperture of at least f/2.0?
 
for the 20mm I have been using a sigma 20-40mm f2.8. It was originally for my nikon mount adapter but now i use it on my 7D.
for wider I have the Tokina 11-16 f2.8.
 
You people disappoint me....... Here is the lens you are looking for Sigma 20mm f/1.8 (Canon Mount)

41b4Uv41XYL._SL500_AA300_.jpg



http://www.amazon.com/Sigma-Aspheri...RKSK/ref=sr_1_1?ie=UTF8&qid=1299227516&sr=8-1
 
For wedding work "soft" is not always a bad thing. Obviously in good lighting I can close it down a little bit, but in terrible lighting, which most receptions have, I'd at least have that light gathering ability.

Now if only I could find something along the lines of the Canon 14mm that had a fairly large aperture and didn't cost a fortune I'd be in business. Thanks guys!
 
This has always been my greatest argument for a 5D. The wide angle situation is not good for fast lenses on APS-C format. Obviously a fast 24mm is going to be around what a 35mm lens would be on FF.

Many people have argued that f1.4 is unusuable for pulling focus, but that is not the case. They are thinking in terms of long lenses. An f1.4 lens at the wider angles gives more DOF for focus pulls on a smaller than FF format. It is a real need for many folks out there.

I own the Olympus 21/2. It goes for around $800-$1200 normally and they are hard to find. I was able to win it in an auction for about half the price just before DSLR's really hit big time.

Pros: Great correction of mustache distortion, not too much in the corners surprisingly. Excellent coatings and contrast, a little jewel in terms of design.

Con: Wide open I find it a little soft and difficult for the LCD on the back of the camera to resolve, but nothing that makes a difference for video (the great equalizer).


The SIGMA's are crap wide open. F1.8 is unusuable for photos. For video once again, it should be fine. The manual focus mode though is a bit funky with it's sliding grip on the barrel of the lens and I honestly think the Olympus outshines them in terms of contrast.

The advantage of digital cameras though is that today we can push the ISO a bit, so f2.8 (about the equivalent of f4 in terms of DOF on the 5D with a subject 10ft away) is still usuable in low light, whereas a few years ago this was not the case.

Leica also makes a 19mm f2.8 which is fantastic and also fantastically expensive.

To be honest though when getting into the wider angles, this is where S35 format and PL mount lenses (rented of course) really are the best. Of course that means a Hot Rod PL mount or somesuch thing. Mega$$$, but incomparably better.

It's almost smartest to have both an FF and a APS-C body today. One for fast wides and the other for fast long lens work. In the end it almost works out cheaper, because it's like owning 2 sets of lenses for the price of one. When's the last time you used a 16mm f1.4, a 135mm f1.2 or a 200mm f2 outside of the PL market? Well you can have the equivalent working this way. (Canon L's: 24/1.4, 85/1.2 and 135/2) But you better be on top of your game with those last two lenses on a 7D.
 
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I don't know, I got tired of waiting and just got a 5Dii refurb with 37 clicks for $2k. I figure I will let all of you buy the 5Diii (for $3300 or whatever crazy price they will ask). If it turns out to be amazing, I may upgrade or not. Happy with the 5D now and I mostly use the personal cam for stills.
 
yoclay said:
f2.8 (about the equivalent of f4 in terms of DOF on the 5D with a subject 10ft away)
Click to expand...

just a slight correction, mildly offtopic: in terms of DoF, f/2.8 on APS-C is exactly f/4,5 on FF, at any distance to the subject; just multiply by 1.6
 
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