Auriga w Pentax 50mm prime lens

[vineyard]

Hello,

Here's 32.5mins of 150s lights on this from last night.  Pentax K70 w an old nifty-fifty prime lens.  iOptron Skyguider Pro (unguided).  ISO 200.  JPEG for size.

There were clouds for a short while, and there's a tree on the left hand corner of the image which obv moved in the image as the mount rotated so I think that's making the calibration off in that corner.  My flats could also be better, but am just experimenting.

I like this lens.  Infinity means infinity, and I like the FOV of this compared to an old 35mm prime (which is too wide for all the neighbouring houses & trees).  Right now I think is my favourite lens for DSLR imaging - need to experiment a bit more but these Pentax primes seem to deliver better images than an old CZJ 135mm Sonnar.  Has anyone used a Pentax 135mm vs CZJ 135mm?

I couldn't get PI annotation to work on this for some reason.

Cheers,

Vin