Hi,
I am doing a lot of gig photgraphy and sometimes struggle to get a full length shot in with my Canon 50mm 1.4. What other low light primes or zooms could I consider?
If you have lots of cash to spare then take a look at the 85mm f/1.2 It's an amazing piece of glass.

Great lens but OP is after a lens under 50mm
Having recently borrowed a 35mm F1.4 I can strongly recommend that lens - it's mint (And expensive).
Otherwise you have a Canon 35mm F2
Thanks for all the responses! I have a 24-70L but although you can frame shots really well the light often fails you. I try and avoid going up to 1600 as the noise gets too great but try and leave on 800-1000.
I am doing a local gig tommorow where there won't be the pressure of 3 songs and out!
I am generally really happy with the 50/1.4, although the DOF is 'challenging, bt just wish I could zoom it.....!
Cheers,
Dunc
That's a good point...
I've found I can print ISO 3200 at A3 with no noise reduction and ISO 6400 with no noise reduction and only slight noise visible in the print.
ISO 12800 the colours are no longer true and to print A3 you need noise reduction like Neat Image, but this may still be very good for you.
ISO 25600 - emergencies only. Will do an 800x600 for the web but that's as far I'd ever go.
All of these were shot at either ISO 12800 or ISO 25600 hand-held with the 70-200 f4 IS. Strewth it was dark in there! I should have done a custom WB, but the warm tone suits the mood.
If you can see subtle noise and banding then it was ISO 25600, at this size the ISO 12800 images appear clean. Noise reduction has not been used.
You might have to sell your soul though........