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06-16-2009, 04:04 AM   #121
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QuoteOriginally posted by dopeytree Quote
Are you using sandisk extreme III's?
From the blog post, linked from above, section "The method is as follows", 6th bullet point:

Yes.



However, it is logical.
The K-7 5.2fps hi burst is specified as 15 RAW / 40 JPG. I found this is true for 1-star JPGs. For 4-star JPGs, the limit is rather 15-20. This makes a lot of sense if we assume that the real limit is some buffer size. 4-star JPGs and PEFs / compressed DNGs are almost same size (10+ MB). Assuming the buffer is 192 or 256MB, we get at about the numbers which are advertized, with some safety margin.


Last edited by falconeye; 06-16-2009 at 04:14 AM.
06-16-2009, 04:27 AM   #122
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7th bullet point actually :P "Storage: JPEGs onto Sandisk Extreme III."

Sorry I only read your forum post not that blog post I'm half alseep it seems
06-16-2009, 04:42 AM   #123
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QuoteOriginally posted by dopeytree Quote
Are you using sandisk extreme III's?
I am.

Just did a burst with Jpeg settings at 2mp and 1 star. 27 shots before pausing for the buffer to catch up. At 6Mp and 2 stars, 23 shots.
06-16-2009, 06:04 AM   #124
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The press release says
"The K-7’s high-speed continuous shooting mode captures as many as 40 images (in JPEG recording format) at a maximum speed of approximately 5.2 images per second"

06-16-2009, 06:34 AM   #125
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QuoteOriginally posted by Unlocker Quote
Just did a burst with Jpeg settings at 2mp and 1 star. 27 shots before pausing for the buffer to catch up. At 6Mp and 2 stars, 23 shots.
Strange. With 15MP and 1 star: I got 41 images before the pause ... Maybe, not all pre-production units are alike? I have been told that those gems are hand-made!
06-16-2009, 06:45 AM   #126
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QuoteOriginally posted by falconeye Quote
Strange. With 15MP and 1 star: I got 41 images before the pause ... Maybe, not all pre-production units are alike? I have been told that those gems are hand-made!
Just tried again.

14Mp & 4* = 15-16 images

14MP & 1* = 22-23 images

Think you may be right as this one focusses nowhere near as fast as the one I tried in store at SRS.
06-16-2009, 09:03 AM   #127
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Strange strange strange

QuoteOriginally posted by Unlocker Quote
14MP & 1* = 22-23 images
I tried to repeat my test as well...
#602-743

This would be 142 images in burst ... but I didn't stop the time (or keep the images).

So, I tried to repeat and got only 39 images in 9s (a bit too slow now). Again, wrong time stamp in the EXIFs (all same second).


Another trial, with a stop watch: 151 images in 30s (:56-:26) (5.0 fps sustained!)


After 30s, I stopped it to end the wear on the shutter

The images are all there, are about 1.64MB large and full resolution. Unfortunately, the subject was too boring to be shown here


Obviously, the K-7 is capable to (almost) sustain the hi burst speed if it manages to write back the data to SD card in real time.
06-16-2009, 09:24 AM   #128
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Factory Labour Costs

QuoteOriginally posted by falconeye Quote
I have been told that those gems are hand-made!
Even production cameras will be hand made. If they were made by robots, why not make them in Japan? They're made in the Philippines because of labour costs. Robots are only used for extremely hi precision, or dangerous assemblies. It takes way to long to build an automated assembly line. Humans are extremely capable, easy to train, cheap, and easy to get rid of.

06-16-2009, 10:26 AM   #129
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QuoteOriginally posted by Mr. The Guy Quote
Even production cameras will be hand made.
Forgive my imprecision. The boards in those gems are hand-soldered ...
06-16-2009, 10:36 AM   #130
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Another way to videograph with the K-7 ...

QuoteOriginally posted by falconeye Quote
Another trial, with a stop watch: 151 images in 30s (:56-:26) (5.0 fps sustained!)
New record: 5.4 fps sustained (92 frames in 17s)

The wear can actually be reduced by shooting out of LV: the mirror would stay up all time long. However, it is not going to be faster...

Here is a (less boring) example, however only at 4.3 fps

http://www.falklumo.com/downloads/pub/2009.06/IMGP1097.MP4

Beware: Material rated PG16 ...


Enjoy
06-16-2009, 01:01 PM   #131
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QuoteOriginally posted by Dr_who Quote
hey Frank I have a question I havn't seen asked yet of the beta testers for the K7. Quite possible I missed it, either way how is the battery life from what you've noticed.
I think it's pretty good. Used it for several days, took over 1k photos and a lot videos too, only charged once. But no matter how good the battery life is, I'll get a spare battery for it
06-16-2009, 01:12 PM   #132
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Thanks Falk and Danny for chipping in. You guys are far better testers I'd say

Can't wait for the final product to come out ... just 10 days to go
06-16-2009, 01:54 PM   #133
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Very nice Frank this camera is a beauty btw how does high ISO do? is it better than the K20D? also would you think that the K-7 is much better than say the Canon 50D? thanks
06-16-2009, 05:14 PM   #134
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QuoteOriginally posted by Yohan Pamudji Quote
If you look at the posted sequence though there's not terribly much change in subject size, which indicates that any change in subject distance to the camera was minimal during the sequence. Maybe I'm spoiled, but I would expect just about any current DSLR to track that kind of movement satisfactorily.
Or he zoomed at the same time? That's one reason I need AF, as I zoom WHILE shooting.
06-16-2009, 07:33 PM   #135
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QuoteOriginally posted by SpartanWarrior Quote
Very nice Frank this camera is a beauty btw how does high ISO do? is it better than the K20D? also would you think that the K-7 is much better than say the Canon 50D? thanks
I haven't really compared high ISO performance between the two cameras, currently only have a K10D and K-7 in hands. But the K-7 is still a beta version w/ v0.3 firmware. Let's wait for 2 more weeks until we have the retail version in hands

As to K-7 vs Canon 50D, I'd take K-7 anytime, because: I only have Pentax lenses, K-7 is smaller and prettier, I like Pentax color better.
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