brian

brian

Lives in United States Petersburg, VA, United States
Works as a lens designer, photographer, entrepreneur
Joined on Oct 2, 2000

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Subject Forum Last post
A7II vs a6000 IQ (Full Frame vs APS-C) Sony Alpha/NEX E-mount Talk 17 hours ago
Speed booster, longer lenses (135mm) and depth of field Sony Alpha/NEX E-mount Talk 2 days ago
Deciding on lens for "speedboosted" (w/ speedbooster) cam Micro Four Thirds Talk 1 week ago
limit max aperture=f0.5 ? Photographic Science and Technology 1 week ago
can a speedbooster/focal length reducer be used from e-mount TO e-mount? Sony Alpha/NEX E-mount Talk 3 weeks ago
DSLR or Mirrorless Beginners Questions 4 weeks ago
Metabones Speed Booster "ULTRA" - Fujifilm X System / SLR Talk 1 month ago
Metabones speed booster???? Micro Four Thirds Talk 1 month ago
Voigtländer 25/0.95 or speedbooster and sigma 35/1.4 Micro Four Thirds Talk 1 month ago
Is there a full-frame to APS-C converter for Pentax K mount? Pentax SLR Talk 2 months ago
Metabones EF to m43 speedbooster s Micro Four Thirds Talk 3 months ago
New CanonEF-m43 Speed Booster available to fit Olympus cameras Micro Four Thirds Talk 3 months ago
An interesting observation by Lens Rentals regarding the filter stack Photographic Science and Technology 3 months ago
Metabones Leica R to m4/3 Speed Booster on Blackmagic Pocket Cinema? Micro Four Thirds Talk 4 months ago
When f/0.95 is not enough... Sony Alpha/NEX E-mount Talk 4 months ago
Could Panasonic make a 12-50mm f2 for $1000 or less? Micro Four Thirds Talk 4 months ago
Better Adapter for Otus Lenses: Novoflex or Metabones? Open Talk 4 months ago
The Great Debate: $1600 Nocticron vs $4000 Otus Open Talk 4 months ago
New Metabones adapters for canon EF Micro Four Thirds Talk 4 months ago
Metabones announces the new Speedbooster ultra Sony Alpha/NEX E-mount Talk 4 months ago
Micro Four Thirds Focal Reducer Shootout Micro Four Thirds Talk 5 months ago
Which brand of speedbooster? Sony Alpha/NEX E-mount Talk 5 months ago
Lenses that work well with focal reducers? Micro Four Thirds Talk 6 months ago
Fast lenses, and High ISO Open Talk 6 months ago
Best Lenses to Adapt / SpeedBoost? Micro Four Thirds Talk 6 months ago
Perspective compression/speedbooster confusion? Beginners Questions 6 months ago
That lump of glass in front of the sensor and its effect on non native glass Micro Four Thirds Talk 7 months ago
Sony DT 35mm 1.8 on a full frame? Any results available? Sony Alpha/NEX E-mount Talk 8 months ago
Sigma 18-35mm f/1.8 on the Speed Booster EF to M43 mount adapter Micro Four Thirds Talk 8 months ago
Focal length reducer for M43 and corner / edge resolution Micro Four Thirds Talk 8 months ago
Calling owners of the Canon FD 85mm 1.2L on Speedboosters Micro Four Thirds Talk 9 months ago
Metabones or Novoflex adapter for a7R ? Sony Alpha/NEX E-mount Talk 10 months ago
Speedbooster/Mitakon old legacy lenses on MFT bodies - Example Images Micro Four Thirds Talk 10 months ago
How good is the metabones speed booster? Sony Alpha/NEX E-mount Talk 10 months ago
Ouch -- SB and Nikon 45mm f/2.8P Sony Alpha/NEX E-mount Talk 10 months ago
“Fastest Lens In the World” – The Handevision Ibelux 40mm f/0.85 Micro Four Thirds Talk 10 months ago
Canon 85mm f1.2 Sony Alpha/NEX E-mount Talk 10 months ago
Jinfinance Focal Reducer vs. Metabones Speed Booster Sony Alpha/NEX E-mount Talk 11 months ago
35mm f/1.8 Nikkor on Speed Booster or Lumix/Leica 25mm f/1.4 Micro Four Thirds Talk Jan 5, 2014
Pentax Q with Shutterless Adapter Pentax SLR Talk Dec 22, 2013
Does anyone know if there is a speed booster in the works for micro4 thirds? Micro Four Thirds Talk Dec 13, 2013
speed booster, is this real? Micro Four Thirds Talk Dec 9, 2013
F/2.0 constant aperture zoom for micro four thirds? Micro Four Thirds Talk Nov 30, 2013
Super fast lens vs speed booster + fast lens? Micro Four Thirds Talk Nov 30, 2013
Are stronger focal length reducers possible? Photographic Science and Technology Oct 12, 2013
Metabones Nikon F to Fuji X adapters (incl. Speed Booster) Fujifilm X System / SLR Talk Sep 30, 2013
widest aperture lens.... Fujifilm X System / SLR Talk Sep 18, 2013
8-12 f2 lens! Micro Four Thirds Talk Sep 15, 2013
Metabones S.B. + 35/1.8 Nikkor vs 25/1.4 Leica/Panasonic Micro Four Thirds Talk Sep 11, 2013
Speedbooster for M43: anyone already got one? Micro Four Thirds Talk Sep 6, 2013