Quote:
Originally Posted by Placidus
Hi, Marc,
There are those who have noticed the coma in the corners, but wow! Have a look at the on-axis detail in the hourglass! That is really special. And there is faint detail in the surrounding structures that is very hard to capture. By any measure very good, and in terms of bang for buck, brilliant!
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Thanks for the support mate.
Once I've resolved that mechanical issue I reckon my guiding will be x3 better. Last night was bouncing up and down >2 seconds of arc in RA and that wasn't seeing related. From experience it should have been under 1.
Had a look at the OTA this morning with fresh eyes and all I have to do is secure the primary cell to the top and bottom dovetails which are bolted on the rings. 90% of the scope weight is on the back and that's only holding by the CF tube at the moment. So making the primary cell part of the assembly will certainly stiffen things a lot and I expect no more flex issues. Lucky I was guiding with an OAG. But the guider had to work hard with everything moving besides the sky.
Yeah the field will never be TAK flat but you're right, on axis is pretty sweet and that's what I'm interested in along with the aperture.