Tracking I can do with a GOTO mount but with accurate PA the Astro-Trac is supposed to be very good. Finding the target however, though I do have semi dark regional skies, maybe set up another mount with my 80mm Megrez (or larger scope) and a green laser and try and set up a second green laser accurately on the rig on the Astro-Trac, it's doable if I can be bothered. actually I wouldn't need a second green laser (which I have), just target the first one already aligned.
Last night I noticed Orion was achievable long before the moon came up over the mountains but I'm having a minor heath issue and couldn't get out. It's usually health or weather.....
One day, I'll enjoy it even more when I eventually get to it.
The Samyong 135mm (Rokinon) isn't ED like my 14mm unit and I haven't played with it at all since I found I couldn't achieve focus at infinity at f1.4. I bought it used through eBay, a common issue with many of these lenses and quickly swapped out if purchased new (my 14mm was the same). The guy on eBay babbled on about with live view you do this and that (I do not remember) but at the time I only had an old Nikon D80 without live view. However it will probably be a better image if I stop it down to f4.5/5.6 anyway, maybe a little more sharpness in the depth and longer exposures are fine if properly tracking. As mentioned, I've never used the lens and got done by an unscrupulous fleabay seller.
Now my Nikon D810 is in for repairs and I have no idea if it will even be back before Christmas (3 or 4 weeks, still waiting on parts in last communication) and I'd rather test it on a full frame sensor for sharpness when cropped/zoomed in (plus 36.x mega pixels compared to 10.2 on the old D80 which wasn't as impressive recently on the moon (it used to be)).
Last edited by Leo.G; 16-12-2024 at 11:57 AM.
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