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
Voigtländer 25/0.95 or speedbooster and sigma 35/1.4 Micro Four Thirds Talk 5 days ago
Metabones Speed Booster "ULTRA" - Fujifilm X System / SLR Talk 3 weeks ago
Is there a full-frame to APS-C converter for Pentax K mount? Pentax SLR Talk 3 weeks ago
Metabones EF to m43 speedbooster s Micro Four Thirds Talk 2 months ago
New CanonEF-m43 Speed Booster available to fit Olympus cameras Micro Four Thirds Talk 2 months ago
An interesting observation by Lens Rentals regarding the filter stack Photographic Science and Technology 2 months ago
Metabones Leica R to m4/3 Speed Booster on Blackmagic Pocket Cinema? Micro Four Thirds Talk 3 months ago
When f/0.95 is not enough... Sony Alpha/NEX E-mount Talk 3 months ago
limit max aperture=f0.5 ? Photographic Science and Technology 3 months ago
Could Panasonic make a 12-50mm f2 for $1000 or less? Micro Four Thirds Talk 3 months ago
Better Adapter for Otus Lenses: Novoflex or Metabones? Open Talk 3 months ago
The Great Debate: $1600 Nocticron vs $4000 Otus Open Talk 3 months ago
New Metabones adapters for canon EF Micro Four Thirds Talk 3 months ago
Metabones announces the new Speedbooster ultra Sony Alpha/NEX E-mount Talk 3 months ago
Micro Four Thirds Focal Reducer Shootout Micro Four Thirds Talk 4 months ago
Which brand of speedbooster? Sony Alpha/NEX E-mount Talk 4 months ago
Lenses that work well with focal reducers? Micro Four Thirds Talk 5 months ago
Fast lenses, and High ISO Open Talk 5 months ago
Best Lenses to Adapt / SpeedBoost? Micro Four Thirds Talk 5 months ago
Perspective compression/speedbooster confusion? Beginners Questions 5 months ago
That lump of glass in front of the sensor and its effect on non native glass Micro Four Thirds Talk 6 months ago
Sony DT 35mm 1.8 on a full frame? Any results available? Sony Alpha/NEX E-mount Talk 7 months ago
Sigma 18-35mm f/1.8 on the Speed Booster EF to M43 mount adapter Micro Four Thirds Talk 7 months ago
Focal length reducer for M43 and corner / edge resolution Micro Four Thirds Talk 7 months ago
Calling owners of the Canon FD 85mm 1.2L on Speedboosters Micro Four Thirds Talk 8 months ago
Metabones or Novoflex adapter for a7R ? Sony Alpha/NEX E-mount Talk 9 months ago
Speedbooster/Mitakon old legacy lenses on MFT bodies - Example Images Micro Four Thirds Talk 9 months ago
How good is the metabones speed booster? Sony Alpha/NEX E-mount Talk 9 months ago
Ouch -- SB and Nikon 45mm f/2.8P Sony Alpha/NEX E-mount Talk 9 months ago
“Fastest Lens In the World” – The Handevision Ibelux 40mm f/0.85 Micro Four Thirds Talk 9 months ago
Canon 85mm f1.2 Sony Alpha/NEX E-mount Talk 9 months ago
Jinfinance Focal Reducer vs. Metabones Speed Booster Sony Alpha/NEX E-mount Talk 10 months ago
35mm f/1.8 Nikkor on Speed Booster or Lumix/Leica 25mm f/1.4 Micro Four Thirds Talk 11 months ago
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
What's the Point of the Metabones Converter? Micro Four Thirds Talk Aug 7, 2013
Is any lens sharper than this in M43? Micro Four Thirds Talk Aug 6, 2013
Lens bi-turbo - why not? Sony Alpha/NEX E-mount Talk Jul 22, 2013
Nex 5N and Minolta MD 50mm 1.4 lowlight performance. Sony Alpha/NEX E-mount Talk Jun 12, 2013
Metabones Speed Booster - Vignetting with Tele-Lenses Sony Alpha/NEX E-mount Talk Feb 18, 2013
voigtlander 35mm f1.2 aspherical ii with nex 6 Sony Alpha/NEX E-mount Talk Feb 9, 2013