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M8 and shadow recovery


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Sol - Yes, that was where I was going, however Scott might have scuppered the thought.

 

...... if you show the full histogram of the underlying data while displaying a thumbnail which is a small conventionally computed JPEG, most people will be rather confused.

 

How about a different solution -- an in camera review mode in which you can push the exposure up and down, seeing the 8bit histogram of the result at each point.?

 

Scott - Thanks for being a whizz, and ignoring my ignorance. So the histogram represents 8 bits of captured information, and 6 bits are not accounted for by it? Is that correct, or have I misunderstood you?

 

With regard to the thumbnail and histogram, we already have confusion and it disadvantages serious workers who want to know whether the shadow wall is clipping at all, or if shadows can be recovered. To an extent, at the shadow end, the histogram has us working in the dark.

 

Your different solution has merit if we would be able to see the true status of the highlight, and shadow, walls. I championed something similar on the forum before, but without the authority of your technical background. Thank you for your reply.

 

...............Chris

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Ich meinte nur daß die helle Bereiche jetzt schön, aber die Schatten immer noch sehr Schwarz sind. Kann mann sie gleichzeitig retten?

 

It’s possible to rescue the shadows - the shadows, not the blacks! I did it in this example: look at the SHADOW (= carpet, furniture on the left side with computer). You can do nothing with the BLACK of the sofa.

 

BTW Did you have contact with Mr. Heymel from Leica at Leica-Berlin?

 

Best Holger

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Mr. Heymel, was that the repair technician? I didn't quite catch his name. If so, yes, he was great! Super-friendly and very helpful. He "found" a film winding lever for my M6, in the M3 style, which I had wanted to exchange. He also spotted some sun damage on my M6 shutter curtain. I bought it second-hand, but this was one thing I didn't think to check. It will probably be fine for years though, it wasn't so bad. Then he admired my Dual-Range Summicron. What a technical wonder that lens is, especially for its age. He showed me that the optical group comes out, just by turning, and we discussed how best to clean various parts. We discussed home-tuning of the rangefinder's 3 settings, red dot exchange (to remove it they just push in the middle of it with a screwdriver until an edge bends out; probably takes 1 second versus the 15 minutes it took me to remove mine, but then again, I saved mine!), and I gave him a short list of my personal wishes for the M9 to pass on to Stefan Daniel. We also discussed photography a bit. He does a lot of M photography, but his M8 is a company camera (Betriebskamera engraved). He has the grip and a monster strap, so it looks really different than my minimal M8 with a non-adjustable Luigi Crescenzi strap with no shoulder pad or guard flaps. I also showed him some of my neater accessories, like the Milich WATE Adapter, and we chatted a little about that. He was very impressed, but immediately suggested that it needed the same black paint treatment that the Leica lenses get. Finally, I left him the address to my photo blog, because he was interested in the shallow DOF panorama portrait I have recently done.

 

Did you also talk to him?

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Guest sirvine

I did a little testing of Aperture's Shadow/Highlight settings last night. My conclusion is that they are not as refined as Lightroom's Recovery/Fill tools.

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I liked "fill light" when I used it in Raw Shooter. Glad to see that it has made it into LR.

 

But here is another example of deep shadow recovery, using C1. Exposure was fooled by bright background, so i show exposure pushed 2.5 stops, 1.5 stops, 0 stops and the best compromise, which seemed to be +1 stop with mid levels shifted down to 1.26:

 

scott

 

I'm going to be devil's advocate here. I don't like the fill light, or a mid-tone shift in C1 (which, along with lessening the contrast, effectively does what fill light does in LR and RSP).

 

The problem with these mid-tone shifts is that they affect colour more than I'd like; neutrals aren't anymore; skin tones shift wayyy to much.

 

Oh, and the overall contrast gets screwy.

 

Scott, the best picture you made out of C1 there is really the first one--+2.5 EV gives the best faces. Do you really care about the "background"?

 

If you do, then the best way to do this with the M8's extremely wide DR is to do two or three converts out of C1, then composite them together in PS. That way, you actually make a picture with everything the M8 offers.

 

On the histogram in the camera--it's always going to be "wrong" when you have the exposure very close. No digital camera I know gives you the histogram from the RAW data--it always gives you the histo from an in-camera JPEG (even if you're not making one--there's still a thumbnail ;)) . This generally means there's more highlight detail than you think, which, all in all, is a good thing :)

 

@ Charles--there is no difference whatsover in prints between the M8 and the 1ds2 in terms of resolution (well, if anything, the M8 shots are sharper out of the camera); you can, however, crop a wee bit more out of a 1ds2 shot at the limits of printability and get a bit better shot. The DR of the M8, at low ISOs, however, I think really does beat up the 1ds2 a bit. So for my corporate clients, they're all getting M8 (or DMR) shots now.

 

(PS--One more C1 tip--if you want to recover the highlights, switch the film look to linear. It's not truly linear--it has gamma applied for instance--but the toe and shoulder of the file is uncurled and so you will get the very best highlights possible; you'll be surprised what you can recover then by moving the EV slider down).

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I did a little testing of Aperture's Shadow/Highlight settings last night. My conclusion is that they are not as refined as Lightroom's Recovery/Fill tools.

 

You played a bit with the advanced features of Aperture?

 

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Best

Holger

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Guest sirvine
You played a bit with the advanced features of Aperture?

 

[ATTACH]42856[/ATTACH]

 

Best

Holger

 

Yes, my observation was that Aperture's shadow/highlight sliders tend to push toward an unappealing grey fill. It's probably just a matter of taste, but the Lightroom version seems to retain the original image better near the top values of the slider. For example, to apply 100% recovery in Lightroom results sometimes in an unappealing boundary artifact, but in Aperture the entire shadow or highlight turns to a flat grey color. I'll continue testing, though, since I like some other features of Aperture.

 

Never mind...I realize that radius is the slider to fix this problem...

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Yes, since using Aperture I've found little or no need to rely on the various plug-ins I acquired for Photoshop. Now, with M8 support, provided through the Mac OS X 10.4.10 update, I can truly work with the wide latitude that RAW files provide and make much better use of the Highlights & Shadows controls.

 

 

Geoff

myspace.com/geoffotos

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