wattsy Posted November 20, 2012 Share #21 Posted November 20, 2012 Advertisement (gone after registration) disappraisal (is that a word?) No. Link to post Share on other sites More sharing options...
Advertisement Posted November 20, 2012 Posted November 20, 2012 Hi wattsy, Take a look here Infrared on MM. I'm sure you'll find what you were looking for!
jaapv Posted November 20, 2012 Share #22 Posted November 20, 2012 Well 01AF, if you have a problem finding facts: http://www.us.schott.com/advanced_optics/english/filter/us/pdf/SCHOTT_rg715_e.pdf Reflected Infrared photography: Filters http://www.schneiderkreuznach.com/pdf/filter/bw_filter_transmission_curves.pdf 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/192577-infrared-on-mm/?do=findComment&comment=2171132'>More sharing options...
01af Posted November 20, 2012 Share #23 Posted November 20, 2012 Well 01AF, if you have a problem finding facts ... I haven't but you have. For example, you're having three different ideas what RG 715 was (and only one of them is correct). The B+W 092 is equivalent to Schott RG 695 (Wratten #89B); the B+W 093 is equivalent to Schott RG 850 (Wratten #87C). There are several IR filters available between these two extremes, including but not limited to Schott RG 715 (Wratten #88A), Schott RG 780, and Schott RG 830. I have no idea what "PECA 715" is—but one thing is for sure: It has nothing to do with Schott RG 715. Looks like a deep-yellow or light-orange filter ... as you already realised yourself, so why on earth are you bringing it to this discussion!? Just because it has a number 715 in its name? Link to post Share on other sites More sharing options...
jaapv Posted November 20, 2012 Share #24 Posted November 20, 2012 Of course you haven't. I just supplied you with them I'll be happy to see your IR shots with the camera. I did indeed decide to stick with the M8. Link to post Share on other sites More sharing options...
rickp13 Posted November 20, 2012 Share #25 Posted November 20, 2012 too strong - too weak? i've had a b&w 092 filter since my m8 days, but never spent much time with IR. but with filter mounted, and sunshine in hamburg today, i gave it a try. basic notes: * basic camera exposure was way too dark. i used +2 exposure compensation * iso 1250, jpg, handheld * processing ( a place to start) color efex pro 4 "contrast only - soft contrast" * smart sharpen 55% at 1.3% first impression - not the strongest IR effect, but a pleasant one. it'll be worth more time to explore, especially if someone will remind me about IR focus compensation tricks. greetings from hamburg rick 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/192577-infrared-on-mm/?do=findComment&comment=2171268'>More sharing options...
jaapv Posted November 20, 2012 Share #26 Posted November 20, 2012 Rather nice, but more deep red than IR on this (rather sad) screen, maybe Silver Efex can enhance it more Focussing tricks; Apo or near Apo lenses may have no or or little focus deviation. Average lenses - use the DOF mark two stops down as a reference point (5.6 on an 2.8 lens, 4.0 on a 2.0 lens etc) and experiment. As quite a bit of IR photography is landscape, it is no hardship to focus bracket. Some lenses will show a hot spot. Btw, for a high frequency image like this one (many leaves) a sharpening radius of 0.7 might be more effective. Link to post Share on other sites More sharing options...
rickp13 Posted November 20, 2012 Share #27 Posted November 20, 2012 Advertisement (gone after registration) and silver efex 014 ........ thanks for the focusing and sharpening tips, jaap. 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/192577-infrared-on-mm/?do=findComment&comment=2171277'>More sharing options...
01af Posted November 20, 2012 Share #28 Posted November 20, 2012 Of course you haven't. I just supplied you with them ... I'll be happy to see your IR shots with the camera. They are not worth looking at because in the few minutes I had to play with that camera, there was no worthwhile subject anywhere close. Anyway, here you are: 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! Leica M9; Apo-Summicron-M 50 mm Asph; 1/1000 s, f/5.6, ISO 160/23°; no filter Leica M Monochrom; Apo-Summicron-M 50 mm Asph; 1/2000 s, f/5.6, ISO 320/26°; no filter Leica M Monochrom; Apo-Summicron-M 50 mm Asph; 1/500 s, f/4, ISO 320/26°; red filter (#25) Leica M Monochrom; Apo-Summicron-M 50 mm Asph; 1/250 s, f/2, ISO 10000/41°; IR filter RG 715 (#88A) Leica M9; Apo-Summicron-M 50 mm Asph; 1/125 s, f/2, ISO 2500/35°; IR filter RG 715 (#88A) Note the red cars as well as the green grass and foliage in the background. The M Monochrom IR shot was a bit over-exposed so I had to tune it down in Camera Raw. With the RG 715 filter, the Wood effect looks good with both cameras but the image quality is much better in the M Monochrom ... even though the M9 is slightly more sensitive in the IR range, the M Monochrom more than compensates with better sharpness, finer tones, and less noise despite higher ISO. The M8 might be somewhat better still; I don't know ... but the M Monochrom most definitely is not entirely unsuitable for IR work. Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Leica M9; Apo-Summicron-M 50 mm Asph; 1/1000 s, f/5.6, ISO 160/23°; no filter Leica M Monochrom; Apo-Summicron-M 50 mm Asph; 1/2000 s, f/5.6, ISO 320/26°; no filter Leica M Monochrom; Apo-Summicron-M 50 mm Asph; 1/500 s, f/4, ISO 320/26°; red filter (#25) Leica M Monochrom; Apo-Summicron-M 50 mm Asph; 1/250 s, f/2, ISO 10000/41°; IR filter RG 715 (#88A) Leica M9; Apo-Summicron-M 50 mm Asph; 1/125 s, f/2, ISO 2500/35°; IR filter RG 715 (#88A) Note the red cars as well as the green grass and foliage in the background. The M Monochrom IR shot was a bit over-exposed so I had to tune it down in Camera Raw. With the RG 715 filter, the Wood effect looks good with both cameras but the image quality is much better in the M Monochrom ... even though the M9 is slightly more sensitive in the IR range, the M Monochrom more than compensates with better sharpness, finer tones, and less noise despite higher ISO. The M8 might be somewhat better still; I don't know ... but the M Monochrom most definitely is not entirely unsuitable for IR work. ' data-webShareUrl='https://www.l-camera-forum.com/topic/192577-infrared-on-mm/?do=findComment&comment=2171282'>More sharing options...
01af Posted November 20, 2012 Share #29 Posted November 20, 2012 And oh, by the way—this is the parking lot in front of the Leica Camera plant in Solms. Link to post Share on other sites More sharing options...
woodyspedden Posted November 23, 2012 Share #30 Posted November 23, 2012 Walt, I wasn't aware that Leica fixed the IR issue in the M8.2. And you didn't because it didn't! LOL Woody Link to post Share on other sites More sharing options...
billo101 Posted May 9, 2013 Share #31 Posted May 9, 2013 I resume the thread to ask, in the end, what is the best filter for IR capture with the MM? B+W 092 - 093 - RG 715 (#88A)? IR72 Huff option? The infrared filter will be mounted on my 35 Summilux ASPH fle (e46) I do not want to buy the M8 Thank you in advance. Link to post Share on other sites More sharing options...
dierk Posted May 10, 2013 Share #32 Posted May 10, 2013 Hi billo, I did a test last year and here is the result: Leica M Monochrom with Summilux 35/1.4 FLE@f/8, ISO 320 IR filter R72, tripod, self timer, 1/2 sec. I did not do any further tests as the images are too unsharp for me and I did not bother trying harder. The lenses don't have any IR mark anymore, too bad. (click for larger view) dierk Link to post Share on other sites More sharing options...
jaapv Posted May 10, 2013 Share #33 Posted May 10, 2013 It was not very common for older Leica lenses to have an IR mark (But the Summarit has one for instance.) Usually they are the DOF mark for two stops down, eg. 4.0 for an 2.0 lens, 5.6 for an 2.8 lens etc. Focus bracketing is your friend. A 092 filter works just fine, just like a 0720. Exposure with sun is about 1/125 , 4.0 @ ISO 5000. Link to post Share on other sites More sharing options...
dierk Posted May 10, 2013 Share #34 Posted May 10, 2013 thanks, Jaap, that is at least a way to go and try. My only lens with a IR mark is the Zeiss C-Biogon 21/4.5 dierk Link to post Share on other sites More sharing options...
jaapv Posted May 10, 2013 Share #35 Posted May 10, 2013 It really varies by lens. My 35/2.8 Canon has it at the 2.8 DOF mark, my 50/1.8 Canon lens halfway between 4 and 5.6. Two stops down is a decent starting point. Apo lenses will show very little to no IR shift. Note that a "normal" red filter will already produce a "one stop DOF mark" focus shift on many lenses. Link to post Share on other sites More sharing options...
billo101 Posted May 10, 2013 Share #36 Posted May 10, 2013 Thank you very much Dierk and Jaap. The focus shift is a problem, thanks for the advice. I go to B + W 092, hopefully good. I am waiting Big Stopper too (B+W ND 110MRC) b Link to post Share on other sites More sharing options...
dierk Posted May 13, 2013 Share #37 Posted May 13, 2013 thanks again, Jaap. I tried my 75 APO Summicron, but the focus is not perfect. And I tried my 35mm Lux ASPH and found the focus at about the f/4 mark. Here is an example from today, in the wood it seems not to great for IR. I have to wait for the right sky and clouds and do more tests. Leica M Monochrom with Summilux-M 35mm/1.4 @ f/9, ISO 1250, IR filter R72, tripod, pano from 3 shots (click) dierk Link to post Share on other sites More sharing options...
jaapv Posted May 13, 2013 Share #38 Posted May 13, 2013 Well, it is a beginning. It needs some more punch and less grain. I'm sure you'll be able to get quite a bit of improvement. I did not do too much IR on the MM, as I prefer the M8. I should do some more when the sun comes out. Link to post Share on other sites More sharing options...
dierk Posted May 16, 2013 Share #39 Posted May 16, 2013 I would like to thank you again, Jaap. I think, I finally got it right. Here are some examples from today (with sun but not too clear sky). you may find more in my flickr Leica M Monochrom with Super-Elmar-M 21mm/3.4 @ f/9, IR filter R72 focus between the 3.4 and 5.6 mark on the DOF scale (click) stitch from 5 images dierk Link to post Share on other sites More sharing options...
billo101 Posted May 16, 2013 Share #40 Posted May 16, 2013 Great IR Dierk! b Link to post Share on other sites More sharing options...
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