If you could only take one prime for your apsc/crop?

Indiana25 wrote:

Thanks everyone for your input. I am ordering a 24mm STM to experiment with. If it turns out that I feel limited in low light or it feels a bit too wide, I'll consider whether I want to go for a prime in 24, 28 or 30 and sacrifice additional weight/size. Reading the reviews and knowing the size of the 24mm STM, I am fairly certain I'll hang onto this lens regardless as it seems like a bargain and a real gem!

A good place to start - have fun and let us know how you find it.

To add my two cents/experience to this discussion for future reference; My EF 28mm f/1.8 is the default lens attached to my 70D and it's a very all-round useful FL - not too wide or too long - generally speaking. Indoors it's wide enough to get most things in and outside too for some architecture at medium distances. It's not too long either like my 50mm that i had to sell on for this reason. But a couple of times i did feel a little bit longer length would've been nice when i was in a wide-open space with crowds - i recently tried the EF 35mm f/2 IS indoors and found that in even in close quarters i could just about deal with the FL so i would really like to try it outdoors and the IS would be handy when travelling about as well as the f/2 in low-light and size + weight, i think this would be my next choice of prime if i have the money spare - i would not buy any prime with a longer FL than this for mid-range photography (telephoto/macro is a different case of course!).

Just to note that although the 28 1.8 is soft wide open, to have the ability to let in all that light is very useful, and besides if you're shooting at high ISO the image quality won't really be that fantastic anyway - but you'll be able to see the subject better than at f/2.8 at the same shutter speed. I brought mine before the 24mm STM was released else i most likely would've gone for it too due to it's size & price, but i'm glad to know the ability to go wider with the aperture