I ran my first successful model tonight of 30 points. Obviously I am going to want to try a much larger model, but I am wondering how long can I use it. I was thinking about a hundred or so. If I go

Hi Rolando, Does the Quad TCC require the same back distance to focal plane in AP 155 f/7 as in 130 f/6.3 GTX/GT. Thanks, JT

Trying the Dec cable on the RA motor will cause a motor stall because the RA cable is trying to run the motor at sidereal, but cannot because it is not plugged in. If you want to try the Dec on RA,

Thanks Jeff and Roland for the info. Roland, looks like I'll have to call George on Monday. I performed your test of placing the RA cable to the Dec motor - at first it looked like it was the

Yep, T-ripper is good to process 1000 mosaic tiles done with 16803. -jg

End-game for me is a 155/7, so this is good to know! That's why the silicon gods granted us ThreadRipper! TRs help immensely even with the 60mp images of the IMX455 cameras. I'm waiting

Yep, the 67 flatteners that came with my 155 f/7 and 180 f/7 create a lovely 100mm image circle with minimum vignetting and great sharpness across the entire circle. A large array for that full

The 67PF flatteners will cover 67mm with hardly any vignetting. In fact any of our flatteners will do it. Rolando

Thank you very much for the positive comments! The ASI1600MM in spite of all its well known limitations is a wonderful little camera, especially for narrowband imaging. I have a QHY 294M coming that

Excellent! The ASI1600MM sure does a fine job in the hands of an expert user. -- Dean Jacobsen http://astrophoto.net/wp/ Image Gallery - http://astrophoto.net/wp/image-gallery/ Astrobin Image

Wow, that’s gorgeous, Luca. It has a wonderful artistic quality. Thank you for sharing, and we’re delighted to hear you’re making good use of your astro-gear! Karen AP

I’ve also un-pinned this thread from the top of the Messages list on the ap-gto Groups.io group. That was probably misleading, as well. Karen AP

Roland, Of course no one knows what lies in the future, but I believe FLI already offers cameras with sensor diagonals of around 87mm. Too expensive for me at this point, but once retirement rolls

The Sony IMX411 is 67mm on the diagonal, 151mp (14304x10748, 3.76um). It's the medium format version of the IMX455. I would absolutely love to be able to image with such a sensor and the fov on a 155

The PF562 field flatteners cover 65mm easily. Do you think there will ever be larger chips? Rolando

Roland, What about larger chips in the future? I made the mistake of not ordering it when I received my 140 back in 2008 and have been looking out for one on Astromart for quite some time. Jeff

Nobody uses film any more. Rolando

Beautiful Luca! Well done! Don Anderson

I had written to AP back in 2019 about the correct FF for my 130 f/6 Starfire EDF and George said I needed the 67PF562. I did not purchase a 67PF562 at that time. It seems that George may have made

I’d like to second this request! From: <main@ap-ug.groups.io> on behalf of "Jeffrey Patrick via groups.io" <Jpvettenut@...> Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io> Date: Friday,