Telescopes & Binoculars

Telescope, Binocular, Microscope & Riflescope Blog

Entries for June, 2011

COLLIMATION AND THE NEWTONIAN TELESCOPE v.4

by Donald E. Pensack
With illustrations/pictures courtesy of Jim Fly and Jason Khadder
“If I have seen further it is by standing on the shoulders of giants.” Isaac Newton
The telescope most likely to need collimation is the Newtonian reflector (which includes Dobsonians) because it is most likely to have its mirrors knocked out of alignment by handling, [...]

Leica Rebate – Get a free CRF tripod adapter – $99 value

Purchase a NEW Leica Rangemaster CRF 1600 or CRF 1000 laser rangefinder from Scope City between June 1st and July 31st, 2011 and receive a free CRF tripod adapter by mail!
A $99 Value Rebat!

June 1, 2011 – July 31, 2011
More Details:
Leica Rebate – Get a free CRF tripod adapter – $99 value

Nikon Compact Binocular Promotion – Dads & Grads $20 Mail-In Rebate

$20 Mail-In Rebat!
Purchase and take delivery of any new eligible Nikon Action, Action Extreme, Travelite or ProStaff Compact binoculars listed here from Scope City, receive $20 mail-in rebate.
June 1, 2011 – July 9, 2011

Nikon Compact Binocular Promotion – Dads & Grads $20 Mail-In Rebate