H2ODoctor

H2ODoctor

Lives in United States Los Angeles, CA, United States
Works as a Chemical Engineer
Joined on Jan 23, 2010

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Subject Forum Last post
6/14/2015 Weekly landscape show and tell Canon SLR Lens Talk 1 week ago
Anyone Prefer the Original 100-400? Canon SLR Lens Talk 4 weeks ago
* * Weekly Wildlife Thread May 31st 2015 * * Canon SLR Lens Talk 4 weeks ago
70-200 f2.8 II or 100-400 II for Newfoundland? Canon SLR Lens Talk 1 month ago
* * Weekly Wildlife Thread May 24th 2015 * * Canon SLR Lens Talk 2 months ago
* * Weekly Wildlife Thread May 17th 2015 * * Canon SLR Lens Talk 2 months ago
Got Tips? -- New 100-400 Mk II & 7DM2 Canon SLR Lens Talk 2 months ago
Any tips to use the Canon EF 400mm f/5.6L USM? Sharp enough for cropping? Canon SLR Lens Talk 2 months ago
Heading to Yellowstone...reason enough for a new lens! Canon SLR Lens Talk 2 months ago
Canon 70-200+2x converter or Canon EF 100-400mm f/4.5-5.6L II USM? Canon SLR Lens Talk 2 months ago
* * Weekly Wildlife Thread May 3rd 2015 * * Canon SLR Lens Talk 2 months ago
Thoughts on switching to 7dm2 for avian photography Canon EOS 7D / 10D - 70D Talk 2 months ago
* * Weekly Wildlife Thread April 26th 2015 * * Canon SLR Lens Talk 2 months ago
New 100-400 II Canon SLR Lens Talk 3 months ago
does anyone actually like the canon 50mm 1.4? Canon SLR Lens Talk 3 months ago
24-70 f/2.8 Love???? Canon SLR Lens Talk 3 months ago
Carrying the 100-400 II Canon SLR Lens Talk 3 months ago
Canon EF 100-400mm f/4.5-5.6L IS II - Should I Upgrade? Canon SLR Lens Talk 4 months ago
MFA with the combo EOS7II and 100-400II Canon SLR Lens Talk 4 months ago
New Canon 100-400 II Canon SLR Lens Talk 4 months ago
Best location for foot when hand holding 100-400 II Canon SLR Lens Talk 4 months ago
7d Mark II with 100-400mm Mark II Canon SLR Lens Talk 5 months ago
Canon 20d still viable? Canon EOS 7D / 10D - 70D Talk 5 months ago
Canon 50mm f1.4 - never been happy Canon SLR Lens Talk 5 months ago
Need advice on 50mm prime for new 5D Mark iii Canon SLR Lens Talk 5 months ago
Lens choice for EPCOT Canon SLR Lens Talk 5 months ago
2 cameras, 2 lenses - National parks in the Western US Canon EOS 7D / 10D - 70D Talk 6 months ago
Choose A Flying Bird Lens From My List Canon EOS 7D / 10D - 70D Talk 6 months ago
The 100-400 version 2, wow. It rocks. Some photos from Ecuador. Canon SLR Lens Talk 6 months ago
Africa Safari + South America Camera Gear Canon SLR Lens Talk 6 months ago
7D Mark II filenames. Canon EOS 7D / 10D - 70D Talk 7 months ago
Carrying Oxygen & a 100-400 Canon SLR Lens Talk Dec 3, 2013
500 mm Open Talk Sep 3, 2013
New Lenses I would like Canon to make Open Talk Aug 31, 2013
anyone still using their 10d and still loving it? Canon EOS 7D / 10D - 70D Talk Apr 8, 2013
Canon 70-300 IS USM vs 70-300 L IS USM Canon SLR Lens Talk Mar 6, 2013
Need Carry Strap Recommendation Canon EOS-1D / 5D / 6D Talk Feb 24, 2013
I want an L lens and can afford either the 70-300 or the 100-400. Which one? Canon SLR Lens Talk Oct 29, 2012
"Sticky" zoom on Canon 100-400mm lens Canon SLR Lens Talk Oct 1, 2012
Lenses recommended for San Diego Zoo Canon SLR Lens Talk Jul 24, 2012
Compare 70-200/4 and 100-400mm, please Canon SLR Lens Talk May 28, 2012
MFA again? Going from 7D to 1d MK IV Canon SLR Lens Talk May 2, 2012
Canon 100-400 question Canon SLR Lens Talk Apr 21, 2012
Safari Lens recommendation for 5D MKII Canon SLR Lens Talk Dec 17, 2011
Safari lens 70-300L or 100-400L Canon SLR Lens Talk Dec 16, 2011
Best camera/lens for bird photo trip to Costa Rica? Canon SLR Lens Talk Oct 29, 2011
Costa Rica for 7 Days next month, Renting a lens. Or two. Canon SLR Lens Talk Sep 8, 2011
Maximum Weight Load for Tripod Canon SLR Lens Talk Jul 2, 2011
Canon 400mm F/5.6 Canon EOS 7D / 10D - 70D Talk Feb 7, 2011
distance a canon 580 flash and BetterBeamer Studio and Lighting Technique Feb 3, 2011