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Best Lenses for Astrophotography

Darrel
Posted 02/03/2021 - 11:36 Link
During lockdown I've been reacquainting myself with astrophotography using my K3II. I use the camera's built-in Astrotracer function, which is very good for shorter focal lengths and also a Skywatcher EQ3/2 tracking mount for my DA*300mm f4 lens that gives great results, even with the x1.4 converter. However, I've been disappointed with my DA*16-50 and my DFA100mm macro lenses that both show quite a lot of distortion of the stars (not star trails), i.e. bloated and non-round shapes, particularly away from the very centre of the frame. I wonder what other users have found?
Cheers
HarisF1
Posted 02/03/2021 - 12:34 - Helpful Comment Link
Apparently the Samyang 135/2 is a great choice for astro. I know it's insanely sharp from wide open although I haven't used it for astro myself. I've used the Samyang 85/1.4 with good results too.

The D-FA 50/1.4 was decent-ish too.

Here's a very early shot using the Samyang 85. It's not great around the edges but I can't remember whether that's down to movement or distortion (f/2..

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All the gear with no idea
Edited by HarisF1: 02/03/2021 - 12:36
Darrel
Posted 02/03/2021 - 12:37 Link
HarisF1 wrote:
Apparently the Samyang 135/2 is a great choice for astro. I know it's insanely sharp from wide open although I haven't used it for astro myself. I've used the Samyang 85/1.4 with good results too.

The D-FA 50/1.4 was decent-ish too.

Here's a very early shot using the Samyang 85. It's not great around the edges but I can't remember whether that's down to movement or distortion (f/2..

Comment Image

Darrel
Posted 02/03/2021 - 12:39 Link
Yes, I've heard that the Samyang 135 f2 performs well but I was hoping to avoid spending 430! I've been looking at Pentax 135 f2.5 secondhand but they seem to have mixed review for astro.
HarisF1
Posted 02/03/2021 - 12:47 - Helpful Comment Link
I've used that one too. The few shots I have are unprocessed DNG files probably from testing but they seem to show coma and CA. I'm not sure whether it was wide open or not either
All the gear with no idea

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