Showing posts with label IR. Show all posts
Showing posts with label IR. Show all posts

20130506

Kat - IR


Kat

Kat

Kat

Kat

model: Kat Kalashnikov
stylist: Kat Kalashnikov
assistant: Kelly Hawkins

Technical info after the jump.
↵ 

20120821

Melissa - Infrared


Melissa - Infrared

Melissa - Infrared

model: Melissa Stanley

More (NSFW) photos and technical info after the jump.

20081011

With and Without DIY IR Filter


Infrared Portrait Infrared Portrait

Infrared Portrait Infrared Portrait

Nikon F2
Nikon Non-Ai 50mm f/1.4 lens
Efke IR 820 35mm film


20081010

Self Promo #2 reshoot


Self Promo #2 reshoot

Nikon F2
Nikon Non-Ai 50mm f/1.4 lens
-DIY infrard filter (2 layers of processed unexposed Ektachrome film)
Efke IR 820 35mm film (metered at 25iso)
-D-76 ~20°C - 8 minutes
Broncolor 1600 powerpack x2
Broncolor 3200 powerpack x2
Nikon Coolscan V 35mm film scanner
Composite through Adobe Photoshop CS3


Lighting:
-diffused copy-light/split-light
-1 1600w/s strobe and 1 3200w/s strobe with standard bowl reflectors @ 7:30 through large scrim
-1 1600w/s strobe and 1 3200w/s strobe with standard bowl reflectors @ 4:30 through large scrim

20080918

A Lession in Over-Processing


Digital (pseudo) IR

Digital (pseudo) IR

Digital (pseudo) IR
[alternative]

Capture:
-Canon Rebel XT (w/o IR modification)
-F-to-EOS adapter
-Nikon Non-Ai 50mm f/1.4 lens
-processed, unexposed E-6 film (DIY IR filter)
-Vivitar 285HV flash x 2
-Cactus V2s wireless flash trigger

Import:
-Adobe Lightroom

Post-processing:
-Bridge CS3 RAW window

20080222

efka IR 820


First attempt at infrared portraits using efke IR 820.

salvaged IR

salvaged IR

salvaged IR

This is the result of trying to salvage an extremely underexposed negative through scanning. The initial preview showed pure black. I brought out the image by pushing it as far as i could using levels and curves in the Imacon scanning software.

The specs are not grain but minuet amounts of dust that wouldn't usually be scene in a normal scan. Bringing the image out brought the debris out as well.

I don't have any IR filters, so I shot in the dark using modified Vivitar 285HVs, one with a double layer of processed unexposed 35mm Ektachrome (reducing it to about a 1"x2" flash area) and another with a red gel folded over 16 times (acting also as a diffuser).

I metered at 100 iso based on the film's data sheet (25 iso when using IR filters).

The gelled flash produced more visible light metering f/3.5 at about a foot, while the chrome flash produced more pure IR light metering f/8 at about a foot, both at full-power. Though, I'm not entirely sure how well my Sekonic L-358 would meter pure IR light.

I processed in D-76 at 20 degrees celsius for 8 minutes. My chems should be good, but it's possible they could be getting weak.

I'm not sure exactly where everything went wrong.

Next time I will meter at 25 iso. I will use sheets of processed unexposed 4x5 Ektachrome (instead of 35mm) with larger more powerful strobes and/or directly on the lens as a makeshift IR filter.

Mamiya C220
Mamiya-Sekor 80mm f/2.8TLR lens
efke IR 820 120 film
(modified) Vivitar 285HV flash
Imacon multi-format film scanner

There are no setup shots.


20080218

DIY Digital Infrared


Most digital cameras are not sensitive enough to capture into the infrared spectrum.
There are ways of modifying sensors for infrared, but it's difficult and usually risks disabling the entire camera.
But there are ways of simulating IR photography.


Pseudo-IR

Pseudo-IR

Pseudo-IR

Pseudo-IR

Pseudo-IR

Pseudo-IR

I taped a makeshift IR filter (unexposed piece of processed Ektachrome film) inside the lens at the bayonet mount (it can be placed on the end of the lens, but found it easier to tape inside). I used my Vivitar 285HV with a red gel folded over several times to light.

The viewfinder cannot be used with the IR "filter" attached. So, I set my distance on the lens and estimated distance. So, This, with the wide open aperture, led to some pretty sketchy focusing.

ISO-1600
Aperture- wide open (f/3.5)
Flash- full power (M)
Flash-to-subject distance- ~6-8"

Canon Rebel XT
Canon 28-135mm f/3.5-5.6 IS lens
Canon offshoe cord
Vivitar 285HV flash