Manicouagan1 Posted July 16, 2012 Share #1 Posted July 16, 2012 Advertisement (gone after registration) Can any of those with the Monochrom report how the camera performs with color filters? Do the filters typically used to cut through haze perform as they do with panchromatic film? When taking pictures with large areas of blue sky using the stronger filters using 16-18-21-24mm focal lengths, is the sky evenly dark? Quote Link to post Share on other sites More sharing options...
Advertisement Posted July 16, 2012 Posted July 16, 2012 Hi Manicouagan1, Take a look here Monochrom with Red/Orange/Yellow Filters. I'm sure you'll find what you were looking for!
01af Posted July 16, 2012 Share #2 Posted July 16, 2012 When taking pictures with large areas of blue sky using the stronger filters using 16-18-21-24 mm focal lengths, is the sky evenly dark? No, of course it's not. It never is. Quote Link to post Share on other sites More sharing options...
2Bébèrt Posted July 16, 2012 Share #3 Posted July 16, 2012 No Monochrom here, helas. But warm filters(yellow/orange/red) should make your sky darker but for haze cutting it is more efficiant using an UV filter. Result should be almost the same as with the panchromatic films. Quote Link to post Share on other sites More sharing options...
jaapv Posted July 16, 2012 Share #4 Posted July 16, 2012 According to my information the yellow and green filters should have about the same effect as they have on normal panchromatic film. Red filters a bit less effective. If your main object is a darkening of the sky consider a polfilter as well. Quote Link to post Share on other sites More sharing options...
algrove Posted July 16, 2012 Share #5 Posted July 16, 2012 I remember Sean Reid's writeup on the MM and his results using some filters. They were not as stark a difference from when I used them on B&W film. The red should have created a deeper sky to me. Thus, Jaap's comment may prove to be the way to go. Of course, after I hear many ordered various colored filters in anticipation of their MM arrival. Quote Link to post Share on other sites More sharing options...
brianv Posted July 16, 2012 Share #6 Posted July 16, 2012 We will need to wait until the production cameras are available to see the final results. I will be duplicating my test done with color filters and the monochrome DSLR once my M9 monochrome arrives. The Red filter was weaker than with film, but this camera does not use a color balance filter over the detector. Quote Link to post Share on other sites More sharing options...
jaapv Posted July 16, 2012 Share #7 Posted July 16, 2012 Advertisement (gone after registration) Yes, but it has an IR and far red filter, which explains the anomalous behaviour with red filters. Orange might be more effective. 1 Quote Link to post Share on other sites More sharing options...
sblitz Posted July 18, 2012 Share #8 Posted July 18, 2012 Perhaps Hoya will come out with versions of its filters designed for a digital sensor. Different intensity of color perhaps to make sensor respond as film Quote Link to post Share on other sites More sharing options...
Photoskeptic Posted July 18, 2012 Share #9 Posted July 18, 2012 I used to stack filters on film with a UV filter on top of a yellow one. Worked great with Efke 25! Now I know that the MM is not going to replicate Efke 25, but the filters WILL work similarly. Quote Link to post Share on other sites More sharing options...
jaapv Posted July 18, 2012 Share #10 Posted July 18, 2012 That does not make much sense. Leica lenses are UV filtered by design, so adding an UV filter does not make any difference at all. Nor does an UV filter impact visible light. Quote Link to post Share on other sites More sharing options...
pop Posted July 18, 2012 Share #11 Posted July 18, 2012 .... Leica lenses are UV filtered by design ... Don't you have to use a filter with the M8 which blocks both IR and UV light? That would argue against Leica lenses being opaque to UV. Quote Link to post Share on other sites More sharing options...
01af Posted July 18, 2012 Share #12 Posted July 18, 2012 Don't you have to use a filter with the M8 which blocks both IR and UV light? No. You have to use a filter with the M8 that blocks IR. 2 Quote Link to post Share on other sites More sharing options...
andybarton Posted July 18, 2012 Share #13 Posted July 18, 2012 "M8" filters are UV AND IR, but it's only the IR bit that's relevant. 1 Quote Link to post Share on other sites More sharing options...
Photoskeptic Posted July 18, 2012 Share #14 Posted July 18, 2012 That does not make much sense. Leica lenses are UV filtered by design, so adding an UV filter does not make any difference at all. Nor does an UV filter impact visible light. Jaap, you got me to thinking about that so I dug out the box of filters I have. Of the clear filters, one is a "Leitz Wetzler Germany" and has "UVa" stamped on it. I don't believe I ever used it on a lens. The second is a B+W F-PRO Made in Germany "39 UV + Haze 1x". This the one I believe I used combined with a yellow filter. Frankly, I'm not sure how I ended up with the Leitz filter, but I question that if all Leica lenses are UV filtered why would they even bother to make an add-on UV filter? It's 39mm so is probably for an M lens, but even so I find it hard to believe Leica would make a filter for other manufacturer's lenses. Quote Link to post Share on other sites More sharing options...
azzo Posted July 18, 2012 Share #15 Posted July 18, 2012 .. , but I question that if all Leica lenses are UV filtered why would they even bother to make an add-on UV filter? For front element protection mostly, I suppose John. 1 Quote Link to post Share on other sites More sharing options...
jaapv Posted July 18, 2012 Share #16 Posted July 18, 2012 Perhaps Hoya will come out with versions of its filters designed for a digital sensor. Different intensity of color perhaps to make sensor respond as filmI am in the process of trying out a B&W 491 filter, which is basically a more precise version of the 1A, called Redhancer. It was alledgedly developed for digital. Quote Link to post Share on other sites More sharing options...
jaapv Posted July 18, 2012 Share #17 Posted July 18, 2012 For front element protection mostly, I suppose John.Exactly, Ivan - and for pre-1950 lenses. However, in extreme UV conditions (mountain tops), they still help 1 Quote Link to post Share on other sites More sharing options...
Photoskeptic Posted July 18, 2012 Share #18 Posted July 18, 2012 For front element protection mostly, I suppose John. Ivan, I guess you better get one for that 50 APO you have ordered, right? 1 Quote Link to post Share on other sites More sharing options...
pico Posted July 18, 2012 Share #19 Posted July 18, 2012 Don't you have to use a filter with the M8 which blocks both IR and UV light? That would argue against Leica lenses being opaque to UV. The M8 filter is dichroic, a 'cut' filter which blocks frequencies invisible to us, but still visible to the sensor. A particular issue with haze where I live (on the Mississippi River) is the scattering of the visible color blue, so I tend to use an orange filter with long lenses. Quote Link to post Share on other sites More sharing options...
brianv Posted July 18, 2012 Share #20 Posted July 18, 2012 (edited) The cover glass used over the M8 and M9 is an absorption filter. This is where most of the IR light is absorbed, and color correction is applied for the detector to have a response closer to film. The filter has a light green appearance. The IR cut filters used over the lens with the M8 and other digital cameras that used too weak of an absorption filter are Dichroic. This type of filter works by reflecting the undesired band of light away from the detector. This would make it undesirable for using on the detector of a camera such as the M8 and M9 with optics that are close to the film plane. A hot spot would be produced. First generation digital cameras and lower-end modern digital cameras use Dichroic filters over the sensor. Filters marked UV/IR for use over the lens are a hybrid: dichroic to reflect IR and absorbing to eliminate UV. Still home, getting over pneumonia, bored, thankyou all for putting up with my cyber-babbling. Edited July 18, 2012 by brianv Quote Link to post Share on other sites More sharing options...
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