Recent content by bobfriedman

I asked MAXMAX.com to modify one my D800's by stripping off the Bayer color filter array (CFA) + the microlenses from the sensor. He removed the anti-aliasing lowpass filter and replaced it with BG-38 glass that passes near UV + visible but excludes infrared. So this camera is capable of...

yes.. the UG-1 passes UV, but has a substantial IR leakage which i exploit for these shots.. i doubt if much UV makes it through that lens.

of course, i did have my usual complement of two other cams with me.. Nikon D200, RG-665 ,Nikkor AF-S 14-24mm f/2.8G ED 1/400s f/5.6 at 14.0mm iso100 Nikon D200, UG-1 ,Nikkor-UD 20mm f/3.5 Auto 1/50s f/8.0 at 20.0mm iso125 Nikon D200, UG-1 ,Nikkor-UD 20mm f/3.5 Auto 1/50s...

i wasn't quite right about the FUJI TAC filter.. the IR-84 passes 900nm around 78%.. i would like to find a US (or otherwise) source for these filters... i can't understand why they are not advertised in the US when the packaging is in english.

I used a Fuji IR-84 TAC filter on the rear of my Nikkor 15/5.6 (clip installed, see below)... The Fuji IR-84 filter has a sharp cut to 90% at 900nm so it is probably more like a 900nm filter than an RG-850.. also, the live view is everything i could have hoped for providing a realtime means of...

Robert Cairns Company LLC <<WEB SITE>> is offering Schott glass in rings.. i purchased an 82mm RG1000 for $150.. he will also polish to the desired thickness (e.g. i purchased a 82mm UG-1 in 2mm thickness) i am not affiliated but have been very pleased with the quality of his filters and...

Nikon D200, IR665 ,Nikkor AF-S 14-24mm f/2.8G ED 1/250s f/5.6 at 14.0mm iso100

Using a D200 UV-VIS-IR and a Nikkor-UD 20mm f/3.5, I tried out filters sequenced RG610,RG715,RG850,RG1000,UG-1 at my favorite IR spot, Mt. Auburn Cemetery, Cambridge, MA, USA... cloudy start but quickly cleared. Rather than post many image jpg’s, I will point you to a gallery where the...

Nikon D200, IR665,Nikkor 16mm f/3.5 AI Fisheye 1/400s f/8.0 at 16.0mm iso200 Nikon D200, IR665 ,Nikkor 17-35mm f/2.8D ED-IF AF-S 1/320s f/5.6 at 17.0mm iso200 Nikon D200, B+W 403 ,Nikkor 20mm f/3.5 Nikkor-UD Auto 1/25s f/8.0 at 20.0mm iso250 Nikon D200 IR830,Ai Nikkor-QD.C...

thank you all... edutilos: you have a good point about the rocks.. and they are easily cropped.

Nikon D200 IR-665,Fisheye-Nikkor 16mm f/3.5 AI 1/640s f/5.6 iso160

it was a pretty windy day.. but i shot 5EV bracket in 1EV steps.. hand held Nikon D3 ,AF-S Nikkor 24mm f/1.4G ED f/5.6 iso200 Nikon D3 ,AF-S Nikkor 24mm f/1.4G ED f/5.6 iso200 Nikon D3 ,AF-S Nikkor 24mm f/1.4G ED f/5.6 iso200

some shots from today Nikon D200 IR-830 ,Nikkor AF-S 14-24mm f/2.8G ED 1/160s f/5.6 at 14.0mm iso160 Nikon D200 IR-665 ,Nikkor 17-35mm f/2.8D ED-IF AF-S 1/320s f/5.6 at 17.0mm iso160 Nikon D200 UV-VIS-IR, UG-1,Nikkor-UD 20mm f/3.5 1/60s f/5.6 at 20.0mm iso200 Nikon D200...

Nikon D200 IR-830 ,Nikkor 14mm f/2.8D ED AF 1/250s f/5.6 at 14.0mm iso160 1/60s f/5.6 1/40s f/5.6 1/180s f/5.6 1/60s f/5.6

of course i went to my favorite IR place.. seems to work great! Nikon D200 UV-VIS-IR, B+W 403 (UG-1) 1/60s f/5.6 iso250 sun directly behind the leaves in the one below 1/80s f/5.6 1/60s f/5.6 1/80s f/5.6 1/80s f/5.6