Gear / Technical Help > Photo / Video Recording

rec me a wide-aperture lens for astrophotography

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jerryfreak:
ive got a canon rebel SL1 (APS-C, with EF lens mount)

the best lens i currently have for astrophotography only goes down to f/4.0 (its a basic 18-55mm f/4.0-f5.6 Canon IS EF-S)

the milky way is phenomenal where i live id like to do some deep sky shots (well, semi-deep sky. not really ready to throw down for a star tracker, yet)

it seems like the high quality lenses in f/1.4 and f/2.8 are several hundred dollars minimum

is there an affordable alternative with decent results for like $200 or less

So far this is the closest ive found, but there might be a better choice: https://www.ebay.com/itm/Rokinon-14mm-F2-8-ED-IF-AS-UMC-Lens-14-2-8-Canon-EF-242/143670075650

or maybe this affordable prime lens woudl be equally as good?
https://www.amazon.com/Canon-50mm-1-8-STM-Lens/dp/B00X8MRBCW


I'm as noob as it gets when it comes to photography. From what i understand the longer focal length of the prime lens will limit my exposure length (using the 'rule of 300' for my APS-C i'm at 6 seconds with the 50mm vs 20+ seconds with the 14mm zoom lens)

thanks

beatkilla:
I don't see needing a fast lens for star trails.

Use Bulb mode and get an external shutter release cable.

I have some shots like that in Bulb mode that are between 30sec. exposures and as much as 1 hour

https://support.usa.canon.com/kb/index?page=content&id=ART142512



I recommend the Tokina 11-16mm  F2.8 (EF mount version)it's really awesome.

jerryfreak:
thanks for the reply

i dont want star trails, though

looking for the opposite

Fatah Ruark (aka MIKE B):
I use the Rokinon 14mm lens with my Sony camera with decent results. I think this photo might be from their 8mm fisheye. Both lenses are equally pretty good (but obviously not as good as the mega $$$ lenses).

guitard:
There is a sub-reddit or two abnout astrophotography.  They sometimes include a lot of detail for the pics about the camera, lens, settings, etc.  Might be worth a look.

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