Can a refractor telescope using three lenses be constructed.?
Monday, April 12th, 2010 at
1:15 pm
like i have an achromatic lens of 2" dia and a focal ratio f/10 and another spare singlet of 6" focal length along with a great eyepiece....i constructed a simple scope using the first lens and the eyepiece... is it possible to add another lens in the middle,or make another telescope using 3 lenses ..?? any changes in the FOV and magnification of the scope,if built...?? any links and support will be helpful..
Possibly related posts: (automatically generated)
- Related posts on constructed.
- Construction » Blog Archive » Wholesale Lot Hyde Drywall etc ...
- Ugandan president commissions Chinese constructed military ...
- Stainless Steel Gas Cooktops » Blog Archive » Induction Cooking ...
- Related posts on Lenses
- What You Need To Know About Color Contact Lenses
- Contact Lenses : Your Q's Answered ! | Best Contact Lenses
- NIKON D60 DIGITAL SLR CAMERA + 2 LENSES! | Digital SLR Cameras ...
- Related posts on Refractor
- Emerson Refractor Telescope with Tripod | TelescopeAccessories.net
US $125.02
Yes, but the results will probably be appalling. Unless the three lenses are designed to work in unison, chances are excellent that the aberrations will get much worse (all of them).
Try it out, it may work out.
The spacing of the lenses and the material they are made of ( flint, crown ) is critical to the elimination of aberration. You can find surplus achromat lenses to make scopes from at Edmunds for a good price
Rafractors are crapola my friend, build a better one..
http://www.google.ca/search?hl=en&source=hp&q=build+a+dobsonian+telescope&meta=&aq=0&aqi=g3g-m2&aql=&oq=build+a+dob&gs_rfai=