rhlpetrus

Lives in Brazil Campinas, Brazil
Works as a math professor
Joined on May 4, 2007

Recent activity

Showing:
Forums:

Snapshot of threads updated recently in which you have recently participated.

Subject Forum Last post
a7riii vs Nikon Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 days ago
The Cameras That Shot the Winning Photos of World Press Photo 2018 Nikon FX SLR (DF, D1-D5, D600-D850) Talk 1 week ago
Why is FX so 'optimal' a format? Nikon FX SLR (DF, D1-D5, D600-D850) Talk 1 month ago
Can Canon and Nikon compete with Sony on the mirrorless market? Sony Alpha Full Frame E-mount Talk 1 month ago
D850 vs D750 ISO performance (new info) Nikon FX SLR (DF, D1-D5, D600-D850) Talk 1 month ago
Sony is Doomed for Pro Market Unless... Nikon FX SLR (DF, D1-D5, D600-D850) Talk 1 month ago
The A7III and it's effects on upcoming Nikon mirrorless Nikon FX SLR (DF, D1-D5, D600-D850) Talk 1 month ago
Depth of field Program mode? Nikon FX SLR (DF, D1-D5, D600-D850) Talk 2 months ago
Less DR in crop mode on D850 - why? Nikon FX SLR (DF, D1-D5, D600-D850) Talk 2 months ago
D850 crop vs D500 at ISO 6400 and 12800 Nikon FX SLR (DF, D1-D5, D600-D850) Talk 2 months ago
Nikon Mirrorless Poll Nikon FX SLR (DF, D1-D5, D600-D850) Talk 2 months ago
F Mount Mirrorless Camera Discussion/Debate - Wow ! Nikon FX SLR (DF, D1-D5, D600-D850) Talk 2 months ago
Nikon #1 in FF dSLRs sales in the USA ... Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
Switching from D7000 to D700 for better autofocus Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
D850 crop mode beats D500? Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
D700 shooting solid white comes out white, not grey. Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
Sigma rumored lenses for FF Nikon mirrorless Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
Why even consider buying a new Nikon Mirrorless? Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
Nikon in 2018 Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
Rumor: New mount for mirrorless Nikon FX SLR (DF, D1-D5, D600-D850) Talk 3 months ago
Is the Leica typ 109 represent the leica picture style? Leica Talk 3 months ago
Thom Hogan's pessimistic 2018 outlook Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Nikon D850 - Ten Technical Questions Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Nikon D850 complete lens set up Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Disappointed Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
The most important aspect of the camera that I use most often is: Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
in-camera histogram Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Poll: Nikon Mirrorless Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Interview with Nikon D850 designer team (from Nikon rumours) Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Emerging markets Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
Leica doing well Leica Talk 4 months ago
flickr stats : D750 is no. 1 Nikon camera Nikon FX SLR (DF, D1-D5, D600-D850) Talk 4 months ago
50mm 1.4G night Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
First week with LX100 Panasonic Compact Camera Talk 5 months ago
Pondering Portrait lens theory Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Why did you choose Nikon ? Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
My Take on the Leica CL Leica Talk 5 months ago
Question about d850 1 x 1 frame size... Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Sony A7R III get higher score than D850 at DPR Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Thom Hogan commentary on latest Nikon financials Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
If or when Nikon do mirrorless... Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Some insight on small/large sensor low light "equivalence"? Panasonic Compact Camera Talk 5 months ago
LX200 with G9 TECH Panasonic Compact Camera Talk 5 months ago
M43, hyperfocal distance and depth of field Micro Four Thirds Talk 5 months ago
Steve Perry Review D850 Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Interesting thread at NR on Nikon finances, mirrorless, d850 Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Nikon D850 AF performance Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Nikon is leaving Brazil Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
I was wrong - D850 pros and cons so far Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago
Cat Dreams Nikon FX SLR (DF, D1-D5, D600-D850) Talk 5 months ago