All Forum Comments
Comment by Anvh posted on DFA100 WR good or not? at 11/03/2010 - 23:21
I'm watching the Chinese forum at the moment some are quite professional so they might buy one.
That's where the lens came from btw.
Comment by Anvh posted on new 645D lens? at 11/03/2010 - 23:12
That you slow down FF with all kind of plugins
Comment by Anvh posted on Bing search, get rid of it!! at 11/03/2010 - 23:08
Btw the hood is also very strange see how long it is and how short the "petals" are?
It looks like a wide angle lens hood but with a long shaft
A very strange lens this one...
Comment by Anvh posted on new 645D lens? at 11/03/2010 - 23:01
It seems btw that Pentax is using a new viewfinder or not?
Here is a pantent at least link

Does look the same right?
Comment by Anvh posted on 645D Press Release at 11/03/2010 - 22:44
Comment by Anvh posted on new 645D lens? at 11/03/2010 - 22:33
For the ISO performance they are on par at ISO400 and above that the K-X will be better.
The K200D is better at low ISO because of the sensor, it's an CCD like Andrew said and the K-X is a CMOS.
CCD are simply better then CMOS at low ISO it's only with long exposures and high ISO where the CMOS is better.
CCD are more uniform, have less system noise and an higher dynamic range.
CMOS has the advantage that its a passive system, so it only creates heats when a pixel is working now CCD are active and there runs a current through them all the time when when you press the shutter, so if the pixel is capturing a dark shadow it will get just as hot as one capturing the sun, that's not the case with CMOS.
So with long night exposures you have less noise introduced by heat.
And CMOS is more effective with high ISO because the signal gets amplified at the pixel and converted to bits, with CCD it gets read as an analogue signal and then gets amplified and converted. During that period noise is introduced.
I'm not 100% sure I got everything right but this the basics that I understand them.
ps. Andrew, I did make a lot of mistakes with the previous comment
Comment by Anvh posted on FS: Pentax K200D at 11/03/2010 - 22:29
A flash introduce a new dimension into photography, what I said just now is just the basics, you also have various forms of light modifiers.
Flashes are a lot of fun but it's a lot of work and trying out.
Here is a list of trigger voltage of a lot of older lenses. link
The Metz 45 Cl1 is 7.6V so that's safe to use.
Pentax is a bit unclear how high voltage the camera can takes but like said 24Volt is the standard and so far as I know Pentax has that standard, some say it can even take flashes up to 200 volt but that's at your own risk.
The Metz 45 is a hammer head (that's how they are called right?)
If you want to be creative then look for some normal flashguns.
However it seems like a powerful flash though.
For new flashes the Metz 48 seems to offer the most bang for the bucks, you can do all the tricks with it except the auto mode and it can't be use as master/controller in wireless mode but it can be used as slave and that's the mode that matters.
Here is a good guide for the P-TTL flashes link
This might also be interesting link
If you're willing to learn however and you've control over your camera then A manual flash is all that you need, you can get flashes made for Canon and Nikon as then, those flashes will work in Manual mode (also Auto I think) on your Pentax and with any wireless device option.
If you want a new Manual flash then this might be interesting link
Do you think that's a big disadvantage?
Comment by Anvh posted on 645D Press Release at 11/03/2010 - 21:33
The K-X has better High ISO performance but with the low ISO the K200D is most probably better.
Don't take this that the K-X does not take good shots at low ISO, just that the K200D is slightly better most probably.
With the switch you loose.
AF indication in the viewfinder
Weather sealing
Battery grip
Money
Gain.
Lighter weight
High ISO performance
Video
Live view
All in all if you don't use high ISO often, video or live view you won't gain a thing.
I don't know how if you've some good lenses already but that are most of the time a better investment.
But that's something for you to decide, the K-X is certainly a good camera but so is the K200D.
For the shutter actions, use www.photome.de when you open a RAW file with it, it shows the number of shutter actions somewhere.
Comment by Anvh posted on FS: Pentax K200D at 11/03/2010 - 21:27


I can still not say if the bokeh is better or not, what do you think?
Has anyone handled the lens, the build quality of the DFA100 isn't super you see so some feedback on that would be great.