sblitz Posted January 10, 2011 Share #1 Â Posted January 10, 2011 Advertisement (gone after registration) thinking of using this filter on the m9 to create ir photos? advice? warnings? Link to post Share on other sites More sharing options...
Advertisement Posted January 10, 2011 Posted January 10, 2011 Hi sblitz, Take a look here m9 & hoya infrared r72 filter. I'm sure you'll find what you were looking for!
jaapv Posted January 10, 2011 Share #2 Â Posted January 10, 2011 Very difficult - the IR sensitivity of the M9 is extremely limited - you will run into very long exposures and will be tied to a tripod. The camera of choice for IR photography is the M8. Link to post Share on other sites More sharing options...
lars_bergquist Posted January 10, 2011 Share #3  Posted January 10, 2011 Yes, the M9 has enough IR sensitivity to make possible even handheld exposures, with a filter with some residual red transmission, such as a B+W 092 or the Hoya R72. These pass red light with wavelengths shorter than c. 720nm.  The picture below was shot at 1:4 and 1/30 at ISO 1000, with the B+W filter on an 18mm Distagon. It has no particular merit, I just did it to find out if it could be done.  Focus by RF, then move the focus ring to closer focus, by the distance from the index to the further d.o.f. marking for 5.6.  The old man from the Age of Film Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/141366-m9-hoya-infrared-r72-filter/?do=findComment&comment=1554027'>More sharing options...
jaapv Posted January 10, 2011 Share #4 Â Posted January 10, 2011 You surprise me, Lars.... Link to post Share on other sites More sharing options...
sblitz Posted January 10, 2011 Author Share #5 Â Posted January 10, 2011 thanks to you both, I will definitely give it a go. i have all sorts of filters left over from my film days. some believe that all this can be better done online in pp, but my sense, another film leftover feeling and not something necessarily rooted in technology, is that it is better to do this type of filtering when you capture the photo rather than create the effect in photoshop or wherever. so if using an ir filter such as the r72 or b+W 092 with the m9 can produce an ir photo and not damage the sensor in any way, it is worth experimenting with. Link to post Share on other sites More sharing options...
jaapv Posted January 10, 2011 Share #6 Â Posted January 10, 2011 How could it damage the sensor? Not to worry about that - have fun with your experiments. Link to post Share on other sites More sharing options...
ho_co Posted January 10, 2011 Share #7 Â Posted January 10, 2011 Advertisement (gone after registration) ... it is better to do this type of filtering when you capture the photo rather than create the effect in photoshop.... Agreed. I've never seen post-processed "IR" that looks like IR. Link to post Share on other sites More sharing options...
brill64 Posted January 11, 2011 Share #8 Â Posted January 11, 2011 the m9 is quite a different animal when compared with the m8, which is known to be infra red light sensitive and can produce some quite extraordinary otherworldly images with the right lighting conditions and careful exposure. i would, on the other hand, side with caution when using, for example, 10 or 20x neutral density filters or 092 or 093 infra red filters on the m9 because i'd question whether the sensor was really developed with this kind of specialist photography in mind. i wouldn't really give it a second thought on a cheap, modified dslr. i imagine that the use of such filters would stretch the limits of what the kodak sensor with it's associated alogrithms and delicate electronics could sensibly or realistically be expected to produce. i'd be happy to be proven wrong on this point by anyone in the know? Link to post Share on other sites More sharing options...
sblitz Posted January 11, 2011 Author Share #9 Â Posted January 11, 2011 yes brill -- that was my point about whether it could damage the sensor. after all, in another thread, we learn that cosmic rays while flying can put a red line into the sensor. jaapv and lars indicate that no such worries are warranted when it comes to putting an r72 filter on the camera. it is going to snow here in nyc so perhaps i will give it a try when the sun comes out. Link to post Share on other sites More sharing options...
LucisPictor Posted October 7, 2012 Share #10 Â Posted October 7, 2012 I think IR-photography is one of the few fields where the M8 is the better choice: Â http://www.l-camera-forum.com/leica-forum/forum-zur-leica-m8/257709-leica-m8-und-infrarot.html#post2202404 Link to post Share on other sites More sharing options...
brill64 Posted October 8, 2012 Share #11 Â Posted October 8, 2012 haha, okie, point taken & thank you, mr blitz..!! an ir filter exposure won't hurt the m9's kodak sensor. with a 0.72ir filter you will need an iso1,000-1,250, handheld to get a 1/8s, 1/15s, 1/30th shutter speed at around f4 max., the latter being with a high uv intensity around 11 or in other words...very strong sunlight & little to no cloud cover & atmospherics. we get few such clear days occasionally here in asia now, that's why a tripod or mini-tripod is highly recommended & useful if you want to use the lower iso's. real ir film is quite grainy anyway so maybe it's a suffice & debatable point..? i've found that with different focals, you need to experiment with finding the best ir focus point, since the same turn to the right doesn't always accurately apply so i'd recommend focus bracketing your exposures with this filter. it's a little harder to nail because the m9's monitor makes it a bit hit & miss in the field. a true infra-red 0.73 filter just won't work on the m9. Link to post Share on other sites More sharing options...
brill64 Posted October 8, 2012 Share #12 Â Posted October 8, 2012 I think IR-photography is one of the few fields where the M8 is the better choice:Â http://www.l-camera-forum.com/leica-forum/forum-zur-leica-m8/257709-leica-m8-und-infrarot.html#post2202404 Â i politely disagree... Link to post Share on other sites More sharing options...
tobey bilek Posted October 20, 2012 Share #13 Â Posted October 20, 2012 Have not tried my M9, but the M8 is superb for ir. I use the B+W 092, and the 093 is very useable cutting off even more visible. Link to post Share on other sites More sharing options...
usayit Posted October 20, 2012 Share #14 Â Posted October 20, 2012 i politely disagree... Â I've tried IR with both my M8 and M9. The M8 is far better choice for IR. Its disadvantage of being sensitive to IR becomes an advantage. With the M9, I get mostly a black with a dark red image which requires a lot of push in post resulting in a much narrower tonal range as well as shutter speeds that are much longer (raising ISO is the only alternative). In bright daylight, I can shoot the M8 with the filter handheld at more reasonable ISOs. Â 092 filter, M8, 24mm elmarit. Â Link to post Share on other sites More sharing options...
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