IR Lens Hotspot Database

kolarivision.com has an excellent ir lens hotspot database already compiled; however, I noticed most of my older film lenses weren’t included so decided to create a database (bottom of page) testing these lenses on the Pentax K-01.

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Pentax A35/2.8

I had the K-01 converted to full spectrum by Isaac Szabo, who did an excellent job and even calibrated the autofocus.

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Pentax M50/1.7 – No Color Swap

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Pentax M50/1.7 Color Swap

My test were performed with either a Hoya R72 or Cokin P007 filter in an aperture range of f5.6, f8 or f11.

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Takumar F 70-200/4.5-5.6

Poor Performers had issues with flare or hotspots at f8 and under.

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Pentax A50/2.8 Macro – No Color Swap

GOOD PERFORMERS          OK PERFORMERS          POOR PERFORMERS
Pentax K30/2.8                     Vivitar PK/AR 28/2.8       Sigma EX DC 18-50/2.8 Macro

Vivitar PK 35/2.8                   Pentax A35/2.8               Sigma EX DG 24-60/2.8

Pentax FA 135/2.8                Takumar F 70-200/4-5.6

Pentax M50/1.7                    Kiron PK 28-105/3.2-4.5

Pentax A 50/2.8 Macro

Lensbaby / Double, Single &
Soft Focus Optics

Infrared Photography, Infra Red, IR Photography, Faux Color, Pentax K-01, R72 Filter, Manzanar CA, Owns Valley CA, Japanese Internment, IR Hotspot, Database
Kiron 28-105/3.2-4.5 – No Color Swap

 

 

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