woodypower

HI Does anyone have any idea what the grey smudgy area in the centre of the image could have been caused by? It appears on all the images of the Leo triplet, taken on my modded canon 250d. I have checked the sensor and its clean, and collimation was confirmed with a laser. Condensation on the secondary mirror? Skywatcher 300PDS, X0.9 coma/reducer and the canon. Thanks

Hi Below is a single 120 sec RAW sub of the Flame Nebula from last night. Does it look normal? Would you recommend a filter?WOGT81 Mk4 with Flat6a.Canon modded 250d at ISO 1600No filtersBortle 5Moon 16% Thanks Mark

Hi I have ordered a WO GT81 iv and will use it with my NEQ6. In order to improve balancing, I would like to remove the original dovetail, and attach the scope to the WO 400mm Losmandy type D. (link below) https://williamoptics.com/products/accessories/mounting/losmandy-style-type-d-swan-series I know there are three holes on the underside of the mounting rings, and I would like to use all 3, but what thread are they and what’s the distance between them? Many thanks

Hi I was imaging Mars yesterday evening, with my SW 300PDS on an NEQ6 mount. I use the Synscan app on an Ipad mini. I noticed Uranus and Neptune were located in the same area, so I looked at the planet list on the app and both planets were not shown. I altered a few setting with no luck. Could anyone explain why they were not listed, and a solution? Thanks Mark