jtra

Lives in Czech Republic Prague, Czech Republic
Has a website at http://jtra.cz/
Joined on Mar 6, 2008

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Subject Forum Last post
The Naked Truth About Bokeh Nikon SLR Lens Talk 1 week ago
Does anyone have both 105mm f/1.4 and 105mm f/2 dc? Nikon SLR Lens Talk 1 month ago
Expert Opinion needed , Sigma ART , micro-contrast and depth rendition Nikon FX SLR (DF, D1-D5, D600-D800) Talk 1 month ago
24-85 3.5-4.5G ED VR & 24-120 4G ED VR Comparison and Overall IQ Nikon SLR Lens Talk 1 month ago
D750 live view "focus points" Nikon FX SLR (DF, D1-D5, D600-D800) Talk 2 months ago
How to Share D810 Small JPEGs via Cellphone, in the field? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 3 months ago
Nikon D 750 : incomplete image Nikon FX SLR (DF, D1-D5, D600-D800) Talk 3 months ago
Bokeh and rain. Nikon SLR Lens Talk 3 months ago
Lens Microcontrast 2 Nikon SLR Lens Talk 4 months ago
Do older lenses have better bokeh? Open Talk 4 months ago
HMM... D750: Err bug :-( Nikon FX SLR (DF, D1-D5, D600-D800) Talk 4 months ago
Weird AF tune issues with D750 Nikon FX SLR (DF, D1-D5, D600-D800) Talk 4 months ago
D750 and App for Smart Phone? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 4 months ago
First impressions: Samyang 135mm f2- Nikon AE Third Party Lens Talk 4 months ago
Does anyone use the dpad lock switch? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 4 months ago
Sigma 50mm discrepancy Third Party Lens Talk 4 months ago
Any possible D750 replacement announcement this year? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 4 months ago
Is Nikon D810 with 24-120mm still a good buy? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 4 months ago
How does Canon's new dual pixel raw enables to refocus in post? Photographic Science and Technology 5 months ago
$270 Bargain Third Party Lens Talk 5 months ago
Is the ERR code on the D750 a warranty repair? And less than happy people Nikon FX SLR (DF, D1-D5, D600-D800) Talk 5 months ago
D750 failed shutter Nikon FX SLR (DF, D1-D5, D600-D800) Talk 5 months ago
What Killed Sigma 50-150 f/2.8? Third Party Lens Talk 5 months ago
105mm/1.4 G vs. Guess the Lens! Nikon SLR Lens Talk 5 months ago
How many shutter actuations do you REALLY get from a camera? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 6 months ago
Nikon 105mm f1.4 - Its Official - Its Expensive Nikon SLR Lens Talk 6 months ago
When is the D750 supposed to be replaced? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 6 months ago
Dpreview testing of the D810 and D750 low light AF Nikon FX SLR (DF, D1-D5, D600-D800) Talk 6 months ago
Nikon 24 1.8G or Sigma 24 1.4 Art ? Need some feedback Nikon SLR Lens Talk 6 months ago
Anybody using D750 with zfinder/lcdvf or similar for LV manual focus? Nikon FX SLR (DF, D1-D5, D600-D800) Talk 7 months ago
Sigma 50mm 1.4 ART vs Nikon 50mm 1.8G Third Party Lens Talk 8 months ago
Comes the D810 beater from Pentax for 1800 USD Nikon FX SLR (DF, D1-D5, D600-D800) Talk 8 months ago
24-120 f/4 not so hot at the long end? Nikon SLR Lens Talk 9 months ago
DxO reviews the D5 Nikon FX SLR (DF, D1-D5, D600-D800) Talk 9 months ago
Focal length of smartphone cameras Mobile Photography Talk 9 months ago
if you could have 4 Nikon lens for free,,,,,,, Nikon SLR Lens Talk 9 months ago
Tamron 15-30 2.8 not comaring as expected againt Olympus 7-14 Nikon SLR Lens Talk 9 months ago
Nikon D5 Motion Blur Images Issue Nikon FX SLR (DF, D1-D5, D600-D800) Talk 9 months ago
Nikon d610 walk around lens Nikon SLR Lens Talk 9 months ago
Tamron 70-300vc moon shot Third Party Lens Talk 10 months ago
Tripod help and advice, for possibly the Sirui K-30X ball head Accessories Talk 10 months ago
24 mm lens advice Nikon SLR Lens Talk 10 months ago
New user looking for Sirui tripod/ball head help Accessories Talk 10 months ago
Stuck pixels on D810 sensor Nikon FX SLR (DF, D1-D5, D600-D800) Talk 10 months ago
Fast wide angle prime or... Nikon SLR Lens Talk 10 months ago
Owner Opinion: D5 @ Low ISO... Nikon FX SLR (DF, D1-D5, D600-D800) Talk 10 months ago
Nikon FX 28-300 VC vs Tamron 28-300 Pieza Drive VC Nikon SLR Lens Talk 11 months ago
D5 vs D750 vs D810 Nikon FX SLR (DF, D1-D5, D600-D800) Talk 11 months ago
Horrible!!! Nikon SLR Lens Talk 11 months ago
zoom or prime for wide-angle? Nikon SLR Lens Talk 11 months ago