No, that would be constant...the star shapes changed on each one minute exposure...round, oval from 7 o'clock to 1, then from 11 to 5, then from 9 to 3, it was random. At .63"/pixel, 2940mm fl, and a

Thanks for the input on this. As we are now in the heat in SE AZ, there is a bit of ground heating during the day, in spite of my tree planting 20 years ago. I did notice with the shorter guide exposu

Curious as to what people have for guider exposures for various systems. Was having some issues guiding my 1600/CDK 17/Maxim 5.18/STL6303E (guiding with camera) in that the stars were not always round

As I offered I had some weirdness with my setup. After much fidgeting and greasing the gears and a new PEC curve, I can go 382" (the worm period) and get round stars near zenith unguided. I could go 3

I have had a similar problem with my 1600. I run ACP...everything runs along fine...would shoot a series of R, G, B frames. All of them are fine except there will be several in a row where the mount o

Greased the gear train and worm on the 1600. After all was done, the RA gear train seems a bit less smooth than the one for the dec axis (gear boxes on bench). I won't say that it is binding but seems

There are people on the list with slow speeds, sending a 9mb file to the group is not appreciated. Send it directly to the person in question and not the group please. Mike J. Shade Mike J. Shade Phot

Another question regarding Maxim and AP1600GTO...There is a setting "enable simultaneous RA and DEC corrections"...can the 1600 do this and if so is it advisable to enable this? Guiding via ASCOM, not

Curious what the worm cycle is in seconds for a 1600GTO...I want to say 385" sticks in my mind from somewhere....but...? Thanks... Mike J. Shade Mike J. Shade Photography: mshadephotography.com In War

One additional question...I am using Maxim 5.18 to guide the 1600GTO through the CDK 17. As I understand it, Maxim has built in declination compensation (I am also using an Optec Gemini rotating focus

OK, thanks...will try that and see how it goes. Mike J. Shade Mike J. Shade Photography: mshadephotography.com In War: Resolution In Defeat: Defiance In Victory: Magnanimity In Peace: Goodwill Sir Win

Have a first generation 1600GTO/Planewave CDK 17/SBIG STL6303E camera, permanent observatory setup. Guiding with the internal guider on the camera, ST237 chip. Main imaging scale .63"/pixel unbinned,

Thanks...the old method of drifting is a major pain but seems to work well for me and my setup. It seems to change ever so slightly over the year, likely metal heat cycling in the AZ summer heat. The

Using the traditional drift alignment method with an illuminated reticle eyepiece, I get round stars near the zenith with my first generation 1600GTO with a five minute unguided exposure, PEC on. This

TEST Mike J. Shade: mshade@... Mike J. Shade Photography: mshadephotography.com In War: Resolution In Defeat: Defiance In Victory: Magnanimity In Peace: Goodwill Sir Winston Churchill Already, in th

#APCC

Please do not send big files to the group. Some people live rural and DO NOT have fast speeds. Provide a place where people can see them if interested. Mike J. Shade: mshade@... Mike J. Shade Photog

The flat washer, the one with two holes on it at the end of the worm shaft (under the little screw on cover) continues to loosen up causing some degree of backlash. It has done it for both RA and DEC.

Mike J. Shade: mshade@... Mike J. Shade Photography: mshadephotography.com In War: Resolution In Defeat: Defiance In Victory: Magnanimity In Peace: Goodwill Sir Winston Churchill Already, in the gat

No, I do not have encoders nor do I use APCC. It is a permanent setup with a very accurate PEC curve and polar alignment. Everything on the OTA is tight, camera and focuser are screw together interfac