Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Ian on Aug 12, 2002, 22:54:00

Title: M27, complements of my home made focal reducer...
Post by: Ian on Aug 12, 2002, 22:54:00
(http://212.104.156.50/oas/m27v4.jpg)

This is 16 30 second captures. I managed to fit it onto the CCD with my new focal reducer made from the objective lens taken from a Marks and Spencer (yes the well known optical house) monocular. The lens is 25mm in diameter and fits with a little tape into a film canister. I'll be using the eyepiece from it for eyepiece projection when I make an adapter for it. The eyepiece appears to be a kellner. If anyone has a use for a roof prism, let me know.

The best bit is, the monocular is fully coated and costs a mighty £12.

Now if we could persuade M&S to stock SCTs we'd be laughing...
Title: M27, complements of my home made focal reducer...
Post by: Greg on Aug 13, 2002, 15:46:00
Well!!!!!! Just unbeleivable - amazing. What fabulous picture. I am just staggered as to how much info you captured in that shot!!

Please let me have a go at the originals.

Please, please.
Title: M27, complements of my home made focal reducer...
Post by: Ian on Aug 13, 2002, 18:52:00
the raw frame is here. You'll see this isn't that much to work with :smile:

http://212.104.156.50/oas/m27raw.bmp
Title: M27, complements of my home made focal reducer...
Post by: Whitters on Aug 17, 2002, 06:13:00
Thats a great image, that focal reducer works a treat.