Articles to help you discover the wonders of the Universe

Photos of the Moon

My latest photos of the Moon

Written By on in Observations

194 words, estimated reading time 1 minutes.

Tonight I took out my small telescope and camera and took a few pictures of the Moon and also used a camera lens with the same focal length for comparison.

My small telescope is a Skywatcher 102 refractor which I bought as a cheap and light alternative to lugging around my 200mm reflector. It has a 102mm diameter and 500mm focal length equating to a f/5 lens. I also have a Sigma 150-500mm lens which is comparable, but higher quality. I wanted to see the difference between the cheap telescope and the expensive lens for astronomy so I took out the two for an evening with the moon.

The first advantage to the Sigma lens is that the lens has autofocus, while the telescope does not. The first immediate disadvantage of the lens is the slower speed and I cannot use any filters. All in all, I found the lens easier to use and got better results from it, however, the telescope is a lot more flexible in that I can add filters, use Barlow lens (for greater magnifications) and use it for eyepiece projection.

I think I'll stick to using telescopes for astronomy, but look at investing in a higher quality refractor.

Here are the two images for comparison.

The Moon through Sigma 500mm Lens
The Moon through Sigma 500mm Lens
The Moon through Skywatcher 10
The Moon through Skywatcher 102 and light pollution filter

Last updated on: Tuesday 16th January 2018



There are no comments for this post. Be the first!


Leave a Reply

Your email address will not be published.

If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Copyright © 2001-2018 Tim Trott, all rights reserved. Web Design by Azulia Designs

This web page is licensed for your personal, private, non-commercial use only.

Disclaimer, Privacy & LegalSitemapContact Me