DPReview.com is closing April 10th - Find out more

Help chosing first astro lens?

Started 6 days ago | Discussions
drunkenjitsu
drunkenjitsu New Member • Posts: 15
Help chosing first astro lens?

I'm trying to stay under $1000 and I'll be picking up a star tracker and mounting on a Canon R6 Mark ii. I've narrowed it down to these.

IRIX 15mm F/2.4 Blackstone

IRIX 21mm f/1.4 Dragonfly

Samyang 16mm f/2.0

Laowa 15mm f/2 Zero-D

Laowa 12mm f/2.8 Zero-D

Sigma 20mm f/1.4

Canon EF 14mm f/2.8L II

Canon RF 16mm f/2.8 STM

I'll primary be using it for astrophotography and landscape. Do any of you have any thoughts or opinions on these, and/or  which would be the sharpest with the least coma?

Thanks!

Canon EOS R6
If you believe there are incorrect tags, please send us this post using our feedback form.
Andy01 Veteran Member • Posts: 5,188
Re: Help chosing first astro lens?

drunkenjitsu wrote:

I'm trying to stay under $1000 and I'll be picking up a star tracker and mounting on a Canon R6 Mark ii. I've narrowed it down to these.

IRIX 15mm F/2.4 Blackstone

I tried 3 Irix 15mm (2x Firefly & 1x Blackstone) - all had defects

IRIX 21mm f/1.4 Dragonfly

Samyang 16mm f/2.0

The cheaper Samyangs are a lottery - you might get a decnet one, but it might take 4-5 lenses to get there.

Laowa 15mm f/2 Zero-D

Laowa 12mm f/2.8 Zero-D

Sigma 20mm f/1.4

Canon EF 14mm f/2.8L II

Canon RF 16mm f/2.8 STM

I'll primary be using it for astrophotography and landscape. Do any of you have any thoughts or opinions on these, and/or which would be the sharpest with the least coma?

Thanks!

You left off arguably the two best options - Samyang 14mm f2.4 XP (very different lens to the cheap f2.8 lenses) and Sigma 14mm f1.8 Art. The Sigma is arguably a little better but it is bigger, heavier and costs a lot more than the Samyang XP.

There is plenty of information on these type of UWA lenses in this forum (just use the search function), but get in quick - only 3 weeks until all that info disappears forever.

 Andy01's gear list:Andy01's gear list
Canon EOS M5 Canon 6D Mark II Canon EF 100mm F2.8L Macro IS USM Canon EF-M 22mm f/2 STM Canon EF 35mm F2 IS USM +5 more
Keyboard shortcuts:
FForum MMy threads