cheap lowlight 30-35mm for APS-C
- By KyleSTL
- Third Party Lenses
- 15 Replies
I would say most fo the 'softness' complaints are corners on FF. Since you have an APS-C camera, you do not need to worry as much about corner performance.sootzzs said:I've read some reviews on the Canon 28 1.8. It seems that most complaints are about the softness at 1.8-2.8. I don't want to buy a 450$ lens and use it at f2.8. I have good enough 28 vintages (MF) which shoot great at 2.8.preppyak said:That said, the difference between f/1.4 and f/1.8 is 2/3 stops, so, it's a noticeable difference, but, I haven't had issues shooting at f/1.8 indoors at all. If you're in a place where f/1.8 and ISO 1600 don't cut it, you either need a flash or to get out of that cave.
I think either the 28mm f/1.8 or the new Sigma 30mm are your best options. Do you have a kit lens you can set to 30mm to see if that focal length works for you?
The Canon 28mm f/1.8 is about on par with the Sigma 30mm f/1.4 DC on an 18MP camera wide open, and falls slightly behind by f/2.8:
Wide Open: TDP Comparison
f/2: TDP Comparison
f/2.8: TDP Comparison
The Canon 35mm f/2 is slightly better than the 28mm f/1.8 wide open and at f/2.8:
Wide Open: TDP Comparison
f/2.8: TDP Comparison
Also, the manual focus primes you are talking about will be more a pain to focus than any of the AF lenses we have discussed, and will likely result in more OOF pictures. Sharpness isn't everything, accuracy should be considered as well. The sharpest lens in the world will produce awful results if the subject is not in focus, and it is even more true with faster apertures.
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