xrogers Posted November 12, 2006 Share #81 Posted November 12, 2006 Advertisement (gone after registration) Good for you on the tripod plate Guy. It may be heresy, but I love what a film M can do on a tripod with Delta 100, and expect the M8 to be impressive as well. The M certainly begs to be handled, however---it never really looks happy perched. Thanks much for all the tests. Link to post Share on other sites More sharing options...
Advertisement Posted November 12, 2006 Posted November 12, 2006 Hi xrogers, Take a look here ISO 1250 stuff . I'm sure you'll find what you were looking for!
Jamie Roberts Posted November 12, 2006 Share #82 Posted November 12, 2006 It is cutting some of the streaking out and honestly it is becoming really hard to get it now. i simply could not get it again in my kitchen . I tried from about 5 different spots and a slew of over exposed shots. It does cut out the ghosting images and i would bet the green blobs are exactly that ghost images. And no i did not use a tripod, man Jack gave me the riot act for even mentioning a tripod. little does he know I still bought the RRS base plate for the M8. Heh Since my DMR got bounced off of a non-RRS plate, mine is on order too But I understand Jack's feelings about it on the M8! Link to post Share on other sites More sharing options...
scott kirkpatrick Posted November 12, 2006 Share #83 Posted November 12, 2006 Guy, you've done well to get up and running with the filters today. I tried - and failed - to find any immediately available. Be creative. I found several sizes were in stock at Amazon.de. But for the 52 I wanted, I got the last. They don't stock the E39, unfortunately. Google gave some hints, but not enough. scott Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 12, 2006 Share #84 Posted November 12, 2006 39mm they must be small lenses . i have 3 46 mm , 1 49mm and 2 55mm Link to post Share on other sites More sharing options...
scott kirkpatrick Posted November 12, 2006 Share #85 Posted November 12, 2006 . It was suggested that visible light+IR was too much for the hit photosites to handle, and so the excess energy "travelled down" the sensors data download path causing the streak. As the sensor seems to be divided in two halves, the streak appears only on the hit half. The model of the CCD's function that I use when looking at these streaks, ghosts, and mirror blobs is that a blob of excessive charge (excessive = more than 60,000 electrons, the max that a pixel well will hold) is created and fails to be swept into the drain by the circuitry that is supposed to be clearing excess charge away to ground. Then during the "bucket brigade" phase of charge extraction, this residual blob drains into the buckets which are coming from inside the hot spot, leaving a streak up to the midpoint. IR light creates electrons deeper in the Si than most visible light (that's how a Foveon three-layer cell works), so it is possible that a blob of excess IR-induced electrons appears at a different location than where Kodak placed the bathtub overflow drain. That could explain Guy's apparent result, that the filter alleviates the streaking and mirror ghosting. Mirror effects -- the idea is that two readouts at exactly the same time are affecting each other. I'll go read the spec again and see if the pinout is provided to see if the left and right sides are coming out in the same location. But some of the pale positive spots in Guy's kitchen ceiling don't look to me like exact mirrors. Guy, could you check with a ruler? Positive spots at some less precise location are more likely to be optical internal reflections ("ghosts") while the negative blobs at exact mirror locations fit the explanation of an electrical timing-dependent interference. I hope Leica's engineers are not so busy executing their recovery plan that they can't benefit from the extensive, if uncontrolled, experiments Guy and others are doing. After all, we want the M8 to recover from all its idiosyncracies, not just those for which management has managed to find non-threatening descriptions And I hope they trust us enough to continue shipping uncorrected units, because I don't have mine yet. scott. Link to post Share on other sites More sharing options...
scott kirkpatrick Posted November 12, 2006 Share #86 Posted November 12, 2006 39mm they must be small lenses . i have 3 46 mm , 1 49mm and 2 55mm The new 28/2.8 takes an E39. My ancient 50/2.0 collapsible looks like it is the same, and my almost as ancient Canon 35/2.0 takes an unavailable 40 and has a plastic outer edge, so I suspect I could get the 39 to hold. I'm not as interested in the very wide or very long lenses which have bigger front ends. My CV50/1.5 takes the 52 mm filter. BTW, finding out filter sizes for lenses no longer manufactured is not so easy. Anybody have a good link to suggest? scott Link to post Share on other sites More sharing options...
steve_l Posted November 12, 2006 Share #87 Posted November 12, 2006 Advertisement (gone after registration) For Leica lenses, hood and filter sizes are at Home Page Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 12, 2006 Share #88 Posted November 12, 2006 Scott measure how far each light is from each other, is that what your after Link to post Share on other sites More sharing options...
osera Posted November 12, 2006 Share #89 Posted November 12, 2006 Blasphemy aside , the Wimberly P-5 seems to fit nicely on the bottom plate of the M8. Wimberley Professional Photo Gear - Camera Body Plate:: 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/8893-iso-1250-stuff/?do=findComment&comment=91567'>More sharing options...
scott kirkpatrick Posted November 12, 2006 Share #90 Posted November 12, 2006 Scott measure how far each light is from each other, is that what your after If we think the images are mirrors, the mirror of a light should the same distance down from the top and the same distance in from the opposite side as its source. I wasn't sure that was really the case for some of the light blobs in your ceiling shots. BTW, I spent some time this afternoon reading the Kodak chip spec, to see if they say anything about Mark Norton's idea for how the mirroring might happen. The left and right video outputs come off the imaging chip at pins on the same edge, about half the chip dimension apart. That doesn't prove much, but it makes it a little less likely that the two outputs run along together on chip and can affect each other. Only Kodak really knows. scott Link to post Share on other sites More sharing options...
scott kirkpatrick Posted November 12, 2006 Share #91 Posted November 12, 2006 For Leica lenses, hood and filter sizes are at Home Page Thanks, that's useful. It lists the 28/2.8 as 46 mm (I was looking at the Popflash pictures of that lens and saw "E39" on the front of the lens -- so 46 may be an outside dimension for lens shade). But my 50/2 collapsible and many other 35 and 50 summicrons take 39 mm filters. scott Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 12, 2006 Share #92 Posted November 12, 2006 Blasphemy aside , the Wimberly P-5 seems to fit nicely on the bottom plate of the M8. Wimberley Professional Photo Gear - Camera Body Plate:: Looks good Allen I got the Really Right Stuff one for the M7 and it fits perfect. I like there products as well as Kirks Link to post Share on other sites More sharing options...
carstenw Posted November 12, 2006 Share #93 Posted November 12, 2006 Thanks, that's useful. It lists the 28/2.8 as 46 mm (I was looking at the Popflash pictures of that lens and saw "E39" on the front of the lens -- so 46 may be an outside dimension for lens shade). But my 50/2 collapsible and many other 35 and 50 summicrons take 39 mm filters. Scott, there are 5 versions of the 28/2.8. The new 28/2.8 Asph. is an E39: http://www.leica-camera.us/photography/m_system/lenses/ Link to post Share on other sites More sharing options...
dhoelscher Posted November 12, 2006 Share #94 Posted November 12, 2006 ... I still bought the RRS base plate for the M8. Guy, I was looking on the Really Right Stuff website, and I didn't see any body plates listed for the M8 ... do you have a special connection? DH Link to post Share on other sites More sharing options...
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