old lens rosette

[alacant]

Hi everyone

Pushing the zeiss to an aperture of a whopping -erm- 35mm. Still holding up. Here with the UHC which seems to control the stars well. Strange how the latter resembles more a mirror when viewed even slightly non-orthogonally.

One of the few old lenses which seems half decent.

Thanks for looking and do post your old lens shots too.

700d @ ISO800

 

Edited February 17, 2021 by alacant

[Donaldkebab]

Great pic!

Magic Drainpipe 80-200 at 200mm f2.8. Very rough polar alignment and processing due to inexperience. Lots to learn 

450d iso 800

Edited February 16, 2021 by Donaldkebab

[alacant]

1 hour ago, Donaldkebab said:

Magic Drainpipe 80-200 at 200mm

Lovely shot.

Don't know the lens, but it looks very good. We find that for the 450d, ISO400 with a dither between frames works well.

Coincidence: I've a remote session in progress with a Takumar 200mm at the moment. Almost the same framing ...

Edited February 16, 2021 by alacant

[Donaldkebab]

I'll try iso 400 thanks for the advise, I need it. I think I was dithering every 3 frames (unguided). I'm using astroberry  and have recently acquired a qhy5 and have been playing with the internal guiding.

[alacant]

5 hours ago, Donaldkebab said:

the internal guiding

Try EKOS' latest SEP multistar with GPG for RA. A pleasant surprise if ever there was one in AP:)

Oh, and yeah. definitely a dither after each frame. Somewhere around 8 px is good we find.

Cheers

Edited February 17, 2021 by alacant

[Donaldkebab]

Great stuff! Thank you I'll do that