Robert Newman

Robert Newman

Lives in United States Dallas, TX, United States
Works as a Technology Consultant
Joined on Dec 15, 2004

Robert Newman's recent activity

  • I don't think that anyone but NASA would need sensors that big, but it would be nice to see full coverage 4.5x6, 6x6, and 6x7 sensors so that some of those vintage lenses could be used again to...

  • random78 is a little too simplistic. Almost all camera lenses are well-corrected refractor telescopes. A high quality refractor meant for astronomy is essentially the same kind of optic with a...

  • This is roughly a 12.6 inch telescope. A used Celestron 14" Schmidt-Cassegrain without mount can be had for roughly $6K. While an f11 optic, it has considerably more light-gathering capability...

  • I am sure some well-heeled pro or advanced amateur might benefit from this review, but spending $250-400 on a ball head makes no sense to me. I picked up my two Manfrotto ball heads on Craigslist...

  • I have my older EyeFi card set up to transfer JPEG files, but even that is relatively slow. I find I have to wait about 10 seconds for a 6-10 Mbyte image to transfer to my i7 laptop. Bursts of...

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Total messages 66
Threads started 10
Last post Feb 8, 2015
Total comments 24
Total likes 122
Last post 1 month ago
Total reviews 1
Last review Aug 14, 2011
Entries 0
Votes cast 0
Photos uploaded 0