Diffraction Limited Support Forum Forum

Doug/Colin, I have been using my STXL-11002M and self-guiding filter wheel with a CDK-17 and Hedrick focuser successfully for several years. I decided to upgrade to the IRF90 rotating focuser and have run into the dreaded fan vibration issue. If I disable the fan in Maxim camera setup, the stars on 4sec exposures are round. If I enable the fan, the stars become elongated and sometimes display as dumbells. After some research here, I found info about swapping the original fan with a Noctua... Read more

Hi , I have a STC7 serial number STC7M-21010703. I bought it about a month ago, NOS, filters are still sealed in the box. Sat on my shelf since I got it and last week started using it inside to check how it works. Plan is to use it in NINA. Bought a Mini PC and installed all the software needed. At first I did upgrade the firmware to 11, installed was 4. It went well as far as I can see. Then plugged it in NINA and perform a few test, one of which was cooling, first time the graph showed... Read more

Hi , I have a STC7 serial number STC7M-21010703. I bought it about a month ago, NOS, filters are still sealed in the box. Sat on my shelf since I got it and last week started using it inside to check how it works. Plan is to use it in NINA. Bought a Mini PC and installed all the software needed. At first I did upgrade the firmware to 11, installed was 4. It went well as far as I can see. Then plugged it in NINA and perform a few test, one of which was cooling, first time the graph showed... Read more

Our filter wheel stopped moving and we found that the main carousel bearing had worn out. There was aluminum powder and the retaining clip fell off. We would like to purchase a replacement bearing or find out the correct size and characteristics so we can find a new one. We think the filter wheel was unbalanced as the person that installed the filters put them all on the same side and left the empty slots together. We will rebalance the wheel after we get the new bearing. Is this possible... Read more

Our filter wheel stopped moving and we found that the main carousel bearing had worn out. There was aluminum powder and the retaining clip fell off. We would like to purchase a replacement bearing or find out the correct size and characteristics so we can find a new one. We think the filter wheel was unbalanced as the person that installed the filters put them all on the same side and left the empty slots together. We will rebalance the wheel after we get the new bearing. Is this possible... Read more

Hi, I have a AFW-12-50RT connected via the USB-FW using The SkyX to connect to the system. When connecting the filter wheel, it comes up as Ready, the drop-down for the filter wheel contains no options to change the filter. Clicking on the Filter Names Setup reports that that it has zero (0) filters, yet the correct FW is selected and COM port. This has happened previously and when power-cycling it has removed the error, but now it comes up every time. Connecting with Maxim DL and... Read more

Hi, I have a AFW-12-50RT connected via the USB-FW using The SkyX to connect to the system. When connecting the filter wheel, it comes up as Ready, the drop-down for the filter wheel contains no options to change the filter. Clicking on the Filter Names Setup reports that that it has zero (0) filters, yet the correct FW is selected and COM port. This has happened previously and when power-cycling it has removed the error, but now it comes up every time. Connecting with Maxim DL and... Read more

As you can see, images I took last evening (and at some other times) show these horizontal streaks. What gives? Image was taken through H-alpha filter, 120 sec exposure, through PlaneWave CDK-17. Images through SII and OIII show a different pattern of horizontal streaks. Flats don't show the streaking, but darks and biases show some horizontal streaking. Thanks!

As you can see, images I took last evening (and at some other times) show these horizontal streaks. What gives? Image was taken through H-alpha filter, 120 sec exposure, through PlaneWave CDK-17. Images through SII and OIII show a different pattern of horizontal streaks. Flats don't show the streaking, but darks and biases show some horizontal streaking. Thanks!

Hi, I was taking some darks and all of a sudden my guide camera stopped outputing. All pixels=0. I checked the hdmi cable and it is working on my laptop external monitor. I tried a different cable and the same thing, all pixels = 0. Any Ideas anyone. Thanks, Bill

Hi, I was taking some darks and all of a sudden my guide camera stopped outputing. All pixels=0. I checked the hdmi cable and it is working on my laptop external monitor. I tried a different cable and the same thing, all pixels = 0. Any Ideas anyone. Thanks, Bill

Any idea what this is? its mostly at the corners. could it be my field flattener. dont know?