peterv Posted January 13, 2007 Share #21 Posted January 13, 2007 Advertisement (gone after registration) I agree with Stephen. (Martin, please don't take the reactions personally) For the moment, I just gave up on M8 jpg's. I find C1 LE so easy to use that I don't even bother with jpg. But I do hope 1.10 will improve the jpg's. Link to post Share on other sites More sharing options...
Advertisement Posted January 13, 2007 Posted January 13, 2007 Hi peterv, Take a look here M8 high contrast sharpening issues with JPEG. I'm sure you'll find what you were looking for!
Bob Ross Posted January 13, 2007 Share #22 Posted January 13, 2007 Hi Martin, This is interesting, because I haven't encountered anything like what you are showing here and I have been pushing the JPEGs around a lot. The closest that I have come is when I tested increased sharpening and even that printed surprisingly well. I have not used ECI RGB (isn't that the most restricted color space?) at all and tend to keep the contrast on the low side. I'm not fond of the saturation control settings, as standard seems low and +1 is a bit high for my tastes, but each is easlily fixed. I'll have to go looking, but those edges you have shown, haven't shown up for me. Bob Link to post Share on other sites More sharing options...
bsmith Posted January 13, 2007 Share #23 Posted January 13, 2007 I did too. I think the M8 jpg fine is like a quailty 3 or 4 level on Canons, maybe Leica could change the compression or "math" in a future firmware upgrade. It's not a deal breaker, but it's a pain when you just want to shoot for fun but have to shoot raw because the jpgs look so bad. Link to post Share on other sites More sharing options...
jaapv Posted January 13, 2007 Share #24 Posted January 13, 2007 C1 is so quick and simple, that I only use Jpeg when shooting B&W DNG+jpg basic, to get the LCD in B&W mode. Link to post Share on other sites More sharing options...
rvaubel Posted January 14, 2007 Share #25 Posted January 14, 2007 Thanks Stephen!I agree that I could have got around the problems by shooting RAW, but now I tested the JPEG perfomance, and I'm glad that someone agree's that there's a serious problem. martinb Although I am strickly a RAW shooter, I agree the M8 should shoot better JPEGs. The problems that you have shown are of some concern but the white balance issue is something that effects the JPEG shooter all the time. I, personally don't care, but there are two very important class of shooters who need good JPEGs * News professionals who don't have time for RAW * Enthuiseast who want Leica quality but are not "off the deep end" when it comes to post processing the results. Leica needs to satisfy both these groups if the camera is to get to all its traditional markets. Link to post Share on other sites More sharing options...
mike prevette Posted January 14, 2007 Share #26 Posted January 14, 2007 I am with you in that this is a issue specific to the JPG processing in the M8. I have never seen it in any other camera when shooting JPG's. It's bgged me since day one. I shoot a lot of RAW, but I also need to depend on the JPG capability of the camera every now and then. _mike Link to post Share on other sites More sharing options...
woodyspedden Posted January 14, 2007 Share #27 Posted January 14, 2007 Advertisement (gone after registration) This isn't about DR or lack of correct exposure. There isn't a correct exposure for situations like the one I attached. Either you blow out the window or underexpose the room or do something in between. I have never seen artefacts like these in any camera I've used before. I believe this is a classic case of sensor bloom. The color purple is almost always associated with bloom that is created by extreme over exposure. Electrons bleed to adjacent pixels causing the problem. I own the M8 and also a 1DsMkII and can assure you the 1DS will display exactly the same phenomenon in these conditions. Woody Spedden Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #28 Posted January 14, 2007 I believe this is a classic case of sensor bloom. The color purple is almost always associated with bloom that is created by extreme over exposure. Electrons bleed to adjacent pixels causing the problem. I own the M8 and also a 1DsMkII and can assure you the 1DS will display exactly the same phenomenon in these conditions. Woody Spedden Not like this. I can assure you that. Link to post Share on other sites More sharing options...
jaapv Posted January 14, 2007 Share #29 Posted January 14, 2007 I agree with Woody. I cannot imagine any camera handling a shot like this. Actually the M8 is one of the best camera's at reproducing high-contrast situations. I must admit that I never -ever shoot Jpeg. If you are in a hurry, then shoot DNG+JPGfine. If the in-camera processor, which can never have the capacity of a PC, cannot handle it, you can always work in DNG to save the shot. Shooting snow against the light is hard on any digital camera. See what the M8 makes of it... Link to post Share on other sites More sharing options...
chrism Posted January 14, 2007 Share #30 Posted January 14, 2007 Thanks Stephen!I agree that I could have got around the problems by shooting RAW, but now I tested the JPEG perfomance, and I'm glad that someone agree's that there's a serious problem. The serious problem could be fixed by pointing at the wall to the side of the window and locking the exposure there. Chris Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #31 Posted January 14, 2007 I agree with Woody. I cannot imagine any camera handling a shot like this. Actually the M8 is one of the best camera's at reproducing high-contrast situations. I must admit that I never -ever shoot Jpeg. If you are in a hurry, then shoot DNG+JPGfine. If the in-camera processor, which can never have the capacity of a PC, cannot handle it, you can always work in DNG to save the shot. Shooting snow against the light is hard on any digital camera. See what the M8 makes of it... Jaap, You've never ever shot JPEG and yet you agree with Woody. That's pretty funny. I wouldn't have brought this up if it wasn't a problem, but it really is. Link to post Share on other sites More sharing options...
jaapv Posted January 14, 2007 Share #32 Posted January 14, 2007 But my point is: why shoot just Jpeg? There is the option of shooting JPG+DNG, just for the kind of problem you are having. Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #33 Posted January 14, 2007 The serious problem could be fixed by pointing at the wall to the side of the window and locking the exposure there. Chris C'mon, I know how to expose a shot. Look at the second sample. It's even worse. Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #34 Posted January 14, 2007 But my point is: why shoot just Jpeg? There is the option of shooting JPG+DNG, just for the kind of problem you are having. Jaap, Please read the topic before replying. I wrote.. "I got my M8 two days ago and have to say it's a wonderful camera. However I think that the JPEG's suck. I usually shoot RAW but shot JPEG these two days because I currently only a have small 1GB SD card." Link to post Share on other sites More sharing options...
jaapv Posted January 14, 2007 Share #35 Posted January 14, 2007 Sorry, I missed that. I retract that one. My next question: Did you use a IR filter, because IR can produce this kind of chromatic aberration. Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #36 Posted January 14, 2007 Didn't use an IR filter but I don't think that this has to do with that. The JPEG's seems to be heavily compressed. Files are around 2-2.5 mb large. My 5mp E-1 was around 3-3.5 mb large and my 6mp Fuji S3 about the same. Link to post Share on other sites More sharing options...
jaapv Posted January 14, 2007 Share #37 Posted January 14, 2007 I'll have a go with and without on jpeg to find out; I agree, the jpeg should be relatively on the same level as the rest. I'm sure if they get more complaints, firmware will cope. But I still think it is not to be expected - on any camera, that an in-camera processed image can match one that is done on a computer, if only through lack of processing power. Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #38 Posted January 14, 2007 Jaap, That's not what I'm saying. I know that a RAW image will always be better. But JPEG's should definetely be better than this. Link to post Share on other sites More sharing options...
jaapv Posted January 14, 2007 Share #39 Posted January 14, 2007 Jaap,That's not what I'm saying. I know that a RAW image will always be better. But JPEG's should definetely be better than this. Now you did not read my post . My first sentence said exactly that. Link to post Share on other sites More sharing options...
martinb Posted January 14, 2007 Author Share #40 Posted January 14, 2007 Sorry Jaap. I read your post, but misunderstood. Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.