I bought a Sunagor PATP 54038748 OP Telephoto lens adapter for my Canon Olympus telephoto lens with a 3 x converter. I don't know if they still make them. It is ...

i had just tried this evening using my new 1.4 teleconverter with EOS cameras attached to my scope and couldn't get the camera to work except with the ...

Using auto teleconverters and auto extension tubes with manual lenses. A few years ago, my friend was working for a telescope company.

Explains the purpose of stacking teleconverters and how to calculating focal length, aperture, and aperture diameter.

Wildlife and the Electromagnetic Spectrum. For a while, I've been interested in capturing photographs of nocturnal animals and insects.

Canon Speedlite 270EX is an entry level pocket sized flash, designed for Powershot and EOS DSLR users. It is a light weight powerful flash with small form ...

1 Reason Most Americans Will Never Be Rich. News. Original Article: Excerpt courtesy of "" RSS feed. Mon, 04 Dec 2023 01:52:39 -0800. Jaspreet Singh: The No. 1 ...

These Are, Without A Doubt, The Most Unhinged Wrong Number Texts And Responses From 2023. News. Original Article: Excerpt courtesy of "" RSS feed. Sun, 07 Jan ...

My first choice is the Canon 1N RS. It has three features that I needed the most: 1) 100% view-finder; 2) spot-metering; and 3) styling that fits ...

Some time ago I found an superb quality door viewer (the kind you put in a door to see who is outside) that was made in Russia. The optics were far, far better ...