Tag : finderscope

Sky-watcher Shoe For Finderscope Bracket by Sky-Watcher

Sky-Watcher Shoe for finderscope BracketSky-watcher Shoe For Finderscope Bracket
A shoe for connecting finderscope brackets to their Optical Tube Assemblies. Attaches to OTA and a thumb screw securely holds the finderscope bracket in place. http://www.opticalvision.co.uk/astronomical_telescopes/sky-watcher/general_accessories/sky-watcher_finderscopes

Price: £7.00

Buy Now from Warehouse Express

Sky-watcher 6×30 Finderscope With Bracket by Sky-Watcher

Sky-Watcher 6x30 Finderscope with BracketSky-watcher 6×30 Finderscope With Bracket
These scopes, mounted on the main instruments as secondary scopes, are invaluable tools in locating objects in the sky.This 6×30 achromatic finderscope is a good choice for any telescope, both astronomical and terrestrial. It can also be used as a replacement of the standard 5×24. The diecast mounting bracket is sprung loading for easy alignment.

Price: £34.00

Buy Now from Warehouse Express

Sky-watcher 6×30 Right-angled Finderscope by Sky-Watcher

Sky-Watcher 6x30 Right-Angled FinderscopeSky-watcher 6×30 Right-angled Finderscope
Sky Watcher 6×30 Right-Angled Finderscope.Provides an upright image with reversed left/right orientation. Supplied with finderscope bracket. Matches the image seen through Refractor or Maksutov-Cassegrain telescopes with star diagonal. Provides exceptionally comfortable and convenient operation compared to a traditional straight-through viewing finder.

Price: £46.00

Buy Now from Warehouse Express

Sky-watcher 9×50 Right-angled Erecting Image Finderscope by Sky-Watcher

Sky-Watcher 9x50 Right-Angled Erecting Image FinderscopeSky-watcher 9×50 Right-angled Erecting Image Finderscope
Sky Watcher 9×50 Right-Angled, Erecting Finderscope. Provides an upright image with completely corrected left/right image orientation. Supplied with finderscope bracket. Provides exceptionally comfortable and convenient operation compared to a traditional straight-through viewing finder.

Price: £84.00

Buy Now from Warehouse Express

Sky-watcher 9×50 Right-angled Finderscope by Sky-Watcher

Sky-Watcher 9x50 Right-Angled FinderscopeSky-watcher 9×50 Right-angled Finderscope
Sky Watcher 9×50 Right-Angled Finderscope.Provides an upright image with reversed left/right orientation. Supplied with finderscope bracket. Matches the image seen through Refractor or Maksutov-Cassegrain telescopes with star diagonal. Provides exceptionally comfortable and convenient operation compared to a traditional straight-through viewing finder.

Price: £74.00

Buy Now from Warehouse Express

Celestron Starpointer Finderscope by Celestron

Celestron Starpointer FinderscopeCelestron Starpointer Finderscope
The Celestron Starpointer Finderscope is designed to make stargazing or locating celestial objects easier. It features a red dot finder which has 1x magnification and a rheostat that controls the reticle brightness. The red dot keeps the sky right-side up and works with most telescopes. It can be easily aligned and won?t require realignment unless the Finderscope is knocked or bumped.

Price: £24.99

Buy Now from Warehouse Express

Guiding in Maxim DL with a Finderscope Guider

At last my guiding seems to be working, after using a finder guider for a couple of years with mixed results, I think I have it cracked.

I originally used to expose my QHY5 camera on my Skywatcher finderscope every 2 seconds for guiding, and have aggressiveness setting of 4-5. I also used to use my finderguider un-binned with a calibration time of 25 seconds.

This is now my Maxim DL autoguiding set-up:

2x Binned QHY5 camera
5 second exposures
Aggressiveness of 6 and 6.5
Calibration Time: 40 seconds
Waiting time between frames: 65 seconds

These are the settings when imaging through my Altair Astro 80mm Triplet at f4.8 at 3.46 arc seconds per pixel. These settings may change when I image with my 8″ RC scope.