K10d Multi-exposure mode
This is such a cool mode. I've been using it with auto EV adjust enabled so that it essentially becomes a handy way of averaging 2-9 successive shots together. Basically allows cheapskates like me to not have to carry an ND filter for this type of photography.
Here's a waterfall shot I took today (just a small creek near my house). It's 9 shots each 1s shutter for a total of 9s (K10d combines them into a single RAW.) I could never get 9s in this situation w/o an ND filter or w/o getting up at 7am when the light is low.
A few minutes later, the sun came out and I took 9 more at 1/5s each ( 2s total). I took two of these sets at different exposures so I could do an HDR to control the highlights. Decent water smoothing just wouldn't be possible in this light w/o this feature (1/5s isn't enough to give good water smoothing).
Added bonus because of the averaging of 9 images, I can boost shadows like crazy without seeing any noise or VPN.
Anyway, just an FYI for those who haven't explored this feature yet. It basically provides another 3 stops of working range for moving water photography.
Hey thanks for the tip, i've been wondering where to use that feature
Mike from Canada
'I like to think so far outside the box that it would require a telephoto lens just to see the box!' ~ 'My Quote :)'
That is a good idea Bart thanks for the tip. I like the results of the first shot. I would have never thought of this application for that feature on the k10d. Thanks!
Ok, THIS makes sense. I've not had any luck with it for anything else.
Creative as ever, Bart! Excellent thinking - and nice example. Thanks very much for sharing pics & technique!
Up there for using the brain mate. Excellent idea! I'll admit that I had never thought of using this mode for those situations. I'm definitely going to have to try it now!
... So accurately exposing the same scene 9 times does not result in a totally white frame? huh.
It "averages" the separate exposures? Interesting. I did now know it worked that way!
Has this been discussed in the forum before? I'll have to try a search to learn a little more.
spring 2007: http://www.threadster.com/spring2007
... So accurately exposing the same scene 9 times does not result in
a totally white frame? huh.
It "averages" the separate exposures? Interesting. I did now know
it worked that way!
If you shut off auto EV adjust (which is the default), then it works like the classic multi-exposure in a film camera and, yes, the resulting image would be nearly white. However, with EV comp adjust enabled, it averages them together so the final exposure is the same as the individual exposures.
You could do this w/o this feature and instead take 9 photos and average them together in photoshop. But it takes 5-10 minutes to do this (find the images and merge them in photoshop) and if you do a lot of shots, this time will add up. So it's really convenient to have just the single RAW in the camera to start with, plus I can see the results out in the field.
Has this been discussed in the forum before? I'll have to try a
search to learn a little more.
I've seen this feature discussed--I don't know if this application was discussed.
Great idea - can you combine this with exposure bracketing to get HDR shots automagically or does auto EV make them all come out the same?
Pixel peepers miss the big picture.
Great idea - can you combine this with exposure bracketing to get HDR
shots automagically or does auto EV make them all come out the same?
No. The two features are mutually exclusive. To do HDR, you'll have to move the exposure parameters yourself. Keep in mind that because of the averaging, you get some extra DR in the shadows (should be 3 stops extra with 8x multi-exposure).
Wonderful, many thanks for this tip! I can't wait to use it.
I notice the leaves are not as sharp in the second shot so I am guessing there was no wind in the first shot and some wind in the second shot?
Wonderful, many thanks for this tip! I can't wait to use it.
I notice the leaves are not as sharp in the second shot so I am
guessing there was no wind in the first shot and some wind in the
Yes, that blur is caused by light wind.
This supports an earlier notion that I had; the multi-exposure mode might come in handy for lightning, and maybe even fireworks or star trails. Or how about for traffic on I-405 at night (recording the lights streaking by). Combining several long-ish exposures could achieve an interesting effect. I guess I'll have to go experimenting.
...along with my new tripod (Manfrotto 725B). We took our weekend walk in the Columbia River Gorge this afternoon--went to Ponytail falls. These shots are so silky smooth from the in-camera averaging it's amazing (you can boost shadows all day long.) It's like having something like ISO12. What a sweet setup--I love this camera.
17mm, f/16, 14s total (2s x 7), circular polarizer
17mm, f/16, 14s total (2s x 7), circular polarizer. 2 shot composite so the FOV is wider than 17mm.
17mm, f/16, 11.2s total (1.6s x 7), circular polarizer. 2 shot composite so the FOV is wider than 17mm.
Great shots Bart and you have a good handle on that Multi-exp. We were just discussing this a few days ago and I had used that technique many years ago with 35mm. Try taking pics of flowing water and putting different colored gelatin filters in front of the lens in between pics.
Thanks for sharing your technique and great pics...
Hey, look at the 1 eyed human, and look how big it is…
My Pentax K10d galleries http://www.pbase.com/wjwncpro/k10d (GMT-6)
Wow.... what a keen technique. I just took some falling water shots today, but had no clue that this could be done! I will be fiddling with my camera tomorrow, for sure!
Bart Hickman wrote:
falls. These shots are so silky smooth from the in-camera averaging
it's amazing (you can boost shadows all day long.) It's like having
something like ISO12. What a sweet setup--I love this camera.
Inspring words and pics!
-- Get a big lens and get closer™.
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