Dear all, I'm intending to supplement my 18-55mm kit lens with a prime lens for portrait and general photography to achieve better image quality.
I'm looking to buy a Tamron 90mm f2.8 because I've read very positive reviews on it. However, I'm wondering whether it would be suitable with the 100D because a crop factor of 1.6x would give it a reach of 144mm. At this reach, how far would I need to stand from my subject to get full body, half body and shoulder up portraits? Also would my subjects' faces look flat at this range?
Are there any other prime lenses that would be more suitable at a similar pricing?
Looking forward to all opinions.