3D-Kraft.com Posted February 22 Share #21 Posted February 22 (edited) Advertisement (gone after registration) vor 1 Stunde schrieb farnz: I'm struggling to understand what this has to do with the sensor stack since, if used, an IR-cut filter is screwed to the front of the lens, where of course all the lens elements are 'in the path' too. Every additional piece of glass in the optical path reduces contrast and sharpness, especially if it is flat glass and not a lens - regardless of whether it is in front of or behind the other lenses. Edited February 22 by 3D-Kraft.com Link to post Share on other sites More sharing options...
Advertisement Posted February 22 Posted February 22 Hi 3D-Kraft.com, Take a look here How sharp should the M8 be?. I'm sure you'll find what you were looking for!
farnz Posted February 22 Share #22 Posted February 22 15 minutes ago, 3D-Kraft.com said: Every additional piece of glass in the optical path reduces contrast and sharpness, especially if it is flat glass and not a lens - regardless of whether it is in front of or behind the other lenses. Yes I get that but your post was in reply to LCT's post about the effect of the thickness of the sensor stack on the 'sharpness', not about additional glass element in the optical path - hence my mystification. Pete. Link to post Share on other sites More sharing options...
3D-Kraft.com Posted February 22 Share #23 Posted February 22 vor 2 Stunden schrieb lct: 0.5mm here. The M8 could well be the winner. You are right. Meanwhile I also found several sources mentioning 0.5 mm for the M8 and 0.8 mm for the M9. But I doubt that the problem of the thread opener has anything to do with the cover glass filter (as long as it is not an AA-filter). Link to post Share on other sites More sharing options...
lct Posted February 22 Share #24 Posted February 22 Been using IR-cut filters since 2011 on my M8.2. I don't recall them reducing contrast in any way. Rather the opposite, but i never did side by side comparos TBH. Is there any literature on the subject? 1 Link to post Share on other sites More sharing options...
3D-Kraft.com Posted February 22 Share #25 Posted February 22 (edited) I think we need to differentiate a little more precisely here: Contrast in photography refers to the difference in brightness between the lightest and darkest visible parts of an image. IR-Cut filters block infrared light to prevent color distortion, and UV filters can reduce haze, both typically improving contrast. However, adding any glass layer, like a filter, can introduce reflections or light loss, potentially reducing contrast and reduce overall image sharpness due to imperfections in the glass especially with poor-quality filters or in wide-angle lenses where light angle varies filter performance (see e.g. here, but focusing on UV-filters: https://optolongfilter.com/do-uv-filters-affect-image-quality/) So the visible improvements of a well-coated IR-filter on the M8 and M8.2 will be positive. In other situations, the negative effects of adding glass layers can outweigh. Edited February 22 by 3D-Kraft.com 1 Link to post Share on other sites More sharing options...
tommonego@gmail.com Posted February 24 Share #26 Posted February 24 I have been impressed by the quality of the B+W IR/UV cut filters I have been using on my M8. The filters do a good job cleaning up greens on the M8, this is what I notice. I have never "protection" filters UV or plain glass lenses, mostly because they don't do anything for the image. Back when I was first learning photography I did testing of filters and the results definitely showed a degradation of the image. Part of this was filter glass at the time was not as good as lens glass, plus we would tend to buy the cheapest filters. Even Leica filters of the time showed some degradation, not as much as Tiffen or Spiratone. Now I think the filter quality has increased quite a bit, but I still have that testing many years ago in my head. 1 Link to post Share on other sites More sharing options...
Olaf_ZG Posted February 24 Share #27 Posted February 24 Advertisement (gone after registration) From today’s walk. To me, sharp enough. 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! 2 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/419188-how-sharp-should-the-m8-be/?do=findComment&comment=5763180'>More sharing options...
david strachan Posted February 24 Share #28 Posted February 24 Very nice and crisp. Which lens and any post sharpening? ... Link to post Share on other sites More sharing options...
Olaf_ZG Posted February 25 Share #29 Posted February 25 9 hours ago, david strachan said: Very nice and crisp. Which lens and any post sharpening? ... Nokton 50/1.5, and sharpening in sfex. 1 Link to post Share on other sites More sharing options...
adan Posted February 25 Share #30 Posted February 25 11 hours ago, Olaf_ZG said: From today’s walk. To me, sharp enough. 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! Or, as a Rolls-Royce salesperson once reportedly told a customer who was - impertinent - enough to ask the horsepower of a new model: "Sufficient, Sir!" 4 Link to post Share on other sites More sharing options...
rand8086 Posted March 2 Share #31 Posted March 2 Purely anecdotal based on my own usage, but when I compare pictures from my M8 to my M11, there is something special about the per-pixel quality of the M8 images. With sufficient enough light to shoot at low ISO, the individual pixels from the M8 seem sharper to my eye on screen at 100%. 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! 4 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/419188-how-sharp-should-the-m8-be/?do=findComment&comment=5766481'>More sharing options...
Olaf_ZG Posted March 3 Share #32 Posted March 3 5 hours ago, rand8086 said: Purely anecdotal based on my own usage, but when I compare pictures from my M8 to my M11, there is something special about the per-pixel quality of the M8 images. With sufficient enough light to shoot at low ISO, the individual pixels from the M8 seem sharper to my eye on screen at 100%. 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! That portrait… great 2 Link to post Share on other sites More sharing options...
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