Mongoose

Joined: 16th November 2006

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Mongoose
Quote:
My K10D is set to shake itself on start-up. I've never had to do anything else with it.

I suspect that if you don't shake dust off immediately, it may form a stronger bond with the sensor surface, and then require more to dislodge it than a quick shake of the sensor.

So I shall stick with the shake on start-up.

G
I agree, only reason I can see to turn off "shake on startup" is if you are in a situation where you want the camera to fire up as fast as physically possible. In that situation I'd be inclined to just leave the switch set to "on" and let the camera turn itself off on power save. It doesn't do the shake thing when recovering from this and comes on even faster.

Comment by Mongoose posted on Test on dust removal systems. at 28/03/2007 - 07:03

Mongoose
Quote:
I
Anyway, I am not really so disappointed in the K10D, but it was a lot of hype and added cost that could have gone to other R&D.
not really, the shake action is done using the same mechanism as the SR system uses so just getting it to shake hard on demand can't have cost more than a couple of hours of some code monkeys time. The only bit which can really have cost extra is the coating, which seems to work rather well as both you and I have noticed that the K10D gets less dusty than our *ists do.

Comment by Mongoose posted on Test on dust removal systems. at 27/03/2007 - 18:45

Mongoose
well I don't know if it's the shaking of the sensor or the new coatings they applied to it, but my K10D gets much less dusty than my DL2.

Comment by Mongoose posted on Test on dust removal systems. at 27/03/2007 - 17:01

Mongoose
Quote:
MattMatic wrote:
Please, please, please, please, please, please, please, please - not another FF vs APS-C discussion
Matt
Ditto.
here here

Comment by Mongoose posted on Theorizing about future product. at 22/03/2007 - 22:56

Mongoose
Quote:
Seeing as I raised the question of Foveon sensors recently, I find this thread particularly interesting and wonder how well that type of sensor would handle this situation.
Perhaps the in-camera processing can be designed to recognise these symptoms and somehow compensate for them but if it really is a limitation of the Bayer-pattern system, then at least pro-spec. cameras should have something better.
The problem is that there really isn't anything "better"

the foveon system has certain advantages, but its low light performance is truely abysmal.

Comment by Mongoose posted on Horrible purple cast, not a new species of robin at 19/03/2007 - 09:12

Mongoose
Quote:
http://www.ephotozine.com/gallery/showlargepic.cfm?photoid=846825
Is THIS what you mean George? I did what you said.
spot on Peter, we'll digitise you yet! lol

if you end up with a silly long url which is going to go off the end of the screen and cause scroll bar irritation you can also do this


[ url=click]http://www.ephotozine.com/gallery/showlargepic.cfm?photoid=846825]click here[/url]

just without the space at the begining, and this happens:

click here

Comment by Mongoose posted on Photo Critiques at 21/03/2007 - 12:14

Mongoose
I think if posting of photos for sharing and critique purposes is allowed and encouraged here, then there should be a forum for it. Photo threads don't really fit in any of the current forums so they get scattered all over the place.

After all, we are about "all things Pentax" as someone mentioned earlier, and surely the photos we take with our Pentax gear are one of the most important "things Pentax"?

Photos for technical issues are a different matter altogether and should certainly be allowed wherever they are relavent, though personally I would like to see an 800x600 size limit, having to scroll to read the text puts me off reading a thread.

Comment by Mongoose posted on Photo Critiques at 19/03/2007 - 09:24

Mongoose
it becomes a lot more noticable as you get in to really close focus (which lets face it half a meter at 200mm is pretty close!), it's possible you've just never noticed it with more "normal" focusing zooms. Actually it happens with primes as well.

This effect is the reason why you should lock your focus when taking shots for a panorama, the difference in magnification can be a pain.

Comment by Mongoose posted on SMC PENTAX-FA 3.8-5.6 28-200 at 30/05/2007 - 13:57

Mongoose
Quote:

What I mean was that when you're focusing on something close you can see it getting larger & smaller in the viewfinder (for example if you changed from a focus point nearby to one far away) so it did appear as if the focal length changed as the various lens elements moved about. It wasn't a big problem in practice however.
just to be clear, this happens with all lenses, more noticeably the closer the focus is, are you saying this lens does it more than most?

Comment by Mongoose posted on SMC PENTAX-FA 3.8-5.6 28-200 at 30/05/2007 - 12:14

Mongoose
Pete if you're going to make meaningful points in comparing two cameras you have to use the same lens on both or AT LEAST the same focal length.

If you really want to properly directly compare the output from these two cameras, here is what I would do


1. Buy yourself a Pentax Takumar 50mm prime in M42 mount, plus suitable adaptors to use it with both Pentax K and Canon EOS mounts. This way you can use the same lens on both bodies.

2. Set up a nice solid tripod in front of a sensible scene containing some fine detail, preferably under controled lighting conditions.

3. Set each camera in turn on the tripod and take the photo, checking histograms and focus etc to make sure you get the best possible picture out of each, and making sure you are focusing on the same spot with each.


You would then have two pictures which should in an ideal world be identical, and any differences will be a result of the camera body used since everything else was the same.

Comment by Mongoose posted on My test results are in (Canon E400 V Pentax K10D) at 16/03/2007 - 16:41

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