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06-26-2012, 04:02 PM   #1
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K-30 shake reduction worse than k-r and k-5?

hi all,

the specs of the k-30 tells a max of 3 stops for the SR (shift and rotational).

in comparison:
- k-5: max 4 stops (shift and rotational)
- k-r: Max 4 stops (only shift)

do you know why? are the specs correct?

06-26-2012, 04:06 PM   #2
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Because it is supposed to be a step below the K-5?
06-26-2012, 04:38 PM   #3
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...I never know there is difference of SR between k-5 and other model...
In reality I think the SR from pentax only have 2 stops advantage
06-26-2012, 04:44 PM   #4
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I think they are just giving a more accurate figure. 4 stops advantage was always a little ambitious as most test have proven.

06-26-2012, 04:46 PM   #5
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CIPA changed the standards in advertising shake reduction--it's the same system as the K-5.
06-26-2012, 04:49 PM   #6
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QuoteOriginally posted by jpfisher Quote
CIPA changed the standards in advertising shake reduction--it's the same system as the K-5.
could you elaborate on that?
06-26-2012, 04:56 PM   #7
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^ The K-30 has the exact same shake reduction system as the K-5. Only the standards in measuring it have changed.
06-26-2012, 05:24 PM - 1 Like   #8
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QuoteOriginally posted by soalle Quote
could you elaborate on that?
http://www.cipa.jp/english/hyoujunka/kikaku/pdf/DC-X011-2012_E.pdf

06-26-2012, 06:30 PM   #9
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Nice catch.
06-26-2012, 09:54 PM   #10
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Even three stops is overstating the point, imo. One solid stop, two on a good day/shot, maybe. It partly depends on what focal length (or magnification) you're using. The narrower the field of view, the harder the SR has to work (the more the sensor has to move) to achieve compensation for a given amount of movement.
06-27-2012, 06:33 AM   #11
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QuoteOriginally posted by Philoslothical Quote
Even three stops is overstating the point, imo.
Maybe, on bad day/shot, in my experience (w/ K200D).

QuoteOriginally posted by Philoslothical Quote
One solid stop, two on a good day/shot, maybe.
One stop is understating the point, again based on my experience. I get 2 - 3 stops consistently.
07-05-2012, 01:16 PM   #12
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I'm pretty sure it's the same SR system from the K-5. The rating was probably just adjusted to be more accurate.

My experience shows that the SR system is effective to 2-3 stops for both the K-r and K-5. The K-5 is probably closer to the 3 stop figure than the K-r (due to rotational correction).

--DragonLord

Last edited by bwDraco; 07-05-2012 at 01:22 PM.
01-02-2013, 05:23 PM   #13
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QuoteOriginally posted by soalle Quote
hi all,

the specs of the k-30 tells a max of 3 stops for the SR (shift and rotational).

in comparison:
- k-5: max 4 stops (shift and rotational)
- k-r: Max 4 stops (only shift)

do you know why? are the specs correct?
The only difference I notice is my K30 focus's and my Kr didn't. I can't tell any discernible difference in SR...I'm just happy with the overall performance.
01-03-2013, 12:11 PM   #14
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I used to treat 1/8 sec as the slowest my K100D could manage fairly reliably with SR and non- telephoto lenses and the K-30 seems much the same really. I also tested my K100D fairly accurately with 300mm FL and it helped by 2 stops, the K-30 I haven't bothered to test but it seems similar at 300mm. Don't forget the shutter time <= 1/FL rule of thumb isn't true for APS-C, 300mm is 450mm as far as that rule of thumb is concerned with the K-30, so 2 stops means about 1/100 to 1/120 sec should be OK.
01-04-2013, 02:36 AM   #15
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K30 SR Effectiveness.

Jumping into the thread only because a few days back I was having a discussion with my friend on how effective the K30 SR is. I proved my point with a few shots taken hand held at 1/80 with the lens at 300mm/f8. Here is one of them.


Rawr: Thanks for the link on the CIPA amendment, makes sense of the lower "advertised" SR claims.

SteveB: I thinks your assessment of being able to shoot the K30 at 1/100 sec at 300 mm is pretty accurate to what I have found while using the camera. I have been able to consistently shoot at or around the 1/100 mark at 300 mm.

Last edited by isb.deep; 01-04-2013 at 02:46 AM. Reason: Formatted text.
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