Correction, that should read: I doubt that the CMOS cameras, when binned have significantly higher efficiency than a 16803 unbinned camera.

The 16803 cameras have 9 micron pixels, so no need to bin further. They are quite efficient and can be cooled to much lower temps that any of the CMOS. I doubt that the CMOS cameras have significantly

On Mon, Sep 26, 2022 at 03:44 PM, Emilio J. Robau, P.E. wrote: Do you really get the same effect by binning a CMOS camera which is software binning from what I understand that you get from binning a

I have been struggling to find a camera with a large pixel to match my longer focal length scope. Do you really get the same effect by binning a CMOS camera which is software binning from what I

Fantastic image! The only advice that I might give is that the image scale is tiny (.28’/pixel) which is well below the limits of resolution in the best of seeing conditions. At 2800mm fl I’d

About 6-7 years ago, while swapping out my 1100 mount for a nice 1200, when I went to separate the Dec from the RA, hundreds of dead Asian Lady and Stink bugs poured out of the two assemblies. The

It costs almost as much to make an 8" as it does a 10", unfortunately. Roland

This has been a very interesting discussion. I don't know how relevant it is to what is being discussed. But I have looked up and down the market for a premium 8" reflector system that works at longer

I wanted to comment that I really enjoy these discussions regarding the design aspects of scopes and the things that Roland and others think of when they discuss these issues on line. I have nothing

The main issue for me is that it is impossible to compete with a 10" astrograph at $4k where users cannot discern the difference. A scope with 66% obstruction will have meaningful contrast reduction.

From my discussions with an owner of that SCA260 it was pretty good up to an APSC field. Past that it wasn't very well corrected. They also seem to lose their collimation rather easily, requiring

The Tak is definitely a good instrument. I have seen results from a 300mm version and the images were sharp across the field of a 9 micron chip. We now have a number of inexpensive 10" wannabe

The Mewlon 250s are in a production halt due to the unavailability of parts, the focusing mechanism in particular. This comes from Chris Hysinger at Tak America. I had a 250 on order for 2+ years and

The main difference is that the Mewlon is open tube and has spider diffraction. Open tube leaves the mirror coatings vulnerable to atmospheric schmutz. Some people love spider diffraction, some

Actually, the place they can get in is on the top of the Dec axis where the cables come out. There are two holes which are used for thru-mount cables. That is where a mouse entered my 1600 mount. I

Well that’s downright gorgeous, Linwood! Karen AP

I received some helpful feedback, and also some help with StarXTerminator from the vendor (excellent support). I did a new version and welcome further feedback. Below is my original for comparison,

Set up my AP 600E last night and had a problem. First of all I did not have a CP2 control box (I have one but not with me). The other thing is that the one non-Y cable going from the mount to the

I only crop stacking artifacts and I prefer my scopes can well correct the IMX455. All speed makes a difference, and like I said that Takahashi reducer cannot correct the big chip. I'm not actually

As I said, undoubtedly a case can be made. But I’m trying to think in marketing terms about the customer base. If it’s in the $22,000 range that the current 10” f14.5 is, many potential