Archived posting to the Leica Users Group, 2016/09/18[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
When the giants of the LUG talk, I listen! A couple of weeks back there was a buzz of interest about IR photography and the M8. Well, gee, I still have one of those in my closet, and the last time I dabbled with IR it was SFX200 in my Rolleiflex 15 years ago, so I went out and ordered a B+W 092 filter to give it a whirl. I'll bet you any reasonable person would say, "well you've got a 35 asph lux, why not set it at f8 and bring back some keepers?" Of course, thinking exactly that, I went back to my safe place and chose the Noctilux at f1.0 for my inquiry. And the voices continued: "The Noctilux is optically inferior especially at f1.0, it's too long -- more so on an M8, and you'll never be able to focus it. Oh yes, and don't even think of trying it on human beings." My improvident impulses prevailed, the results of which I've put on the gallery: From this weekend, in upstate NY with friends: http://gallery.leica-users.org/v/shino/InfraOktoberFest2016/ From last weekend, moments from freeing the B+W 092 filter from its UPS box, my very first attempts at exposing and focusing with the 092 filter. http://gallery.leica-users.org/v/shino/IRTest-M8-Noct-BW092/ Comments: Exposure: the M8 meter worked reasonably well with the 092 filter, I occasionally had to dial it up +1 stop. Exposures with the 092 at f1.0 ended up at 1/60 sec @ 160 or 320. Focus: using the focus scale on the lens was a non-starter for me, too complicated and the numbers too darn small. What I did end up doing was to locate a point approximately 3/4 or 2/3 of the distance to my subject and focus on that with the rangefinder. After a little practice, this proxy focusing method worked surprisingly well even at f1.0. And you always have the screen to check and adjust. Composition: Non-issue--love the optical viewfinder! Processing: Minimal. I use Digikam on Linux. The originals tend to look like sepia prints. I try to reset a white point, then adjust curves to get back contrast, then dial back some saturation. Images with sky look dramatic, with Star Trek orange skies, terrestrial objects more subdued. I didn't do any sharpening or channel switching or anything sophisticated on these sets. Thanks LUG for the inspiration and fun!