Mongoose

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Join Date: 16th November 2006
Last Login: 8th February 2014 - 14:33
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New K3 image - interesting!
Posted in Pentax Digital SLRs
Clearly Glyn's is also photoshopped :P
Why no built-in ND filters?
Posted in General Digital Photography chat
My understanding of sensors is incomplete (in that the only one I've ever played with directly was a CCD, I don't know if they all work the same way or if CMOS makes a difference), but I think that would require a significant re-working of the sensor itself. in any case wouldn't your suggestion result in some pretty odd motion blur artifacts? For still subjects with clever processing you might get some DR improvement out of it though.
Why use Av instead of P?
Posted in Pentax Digital SLRs
Here Here! while we're at it, I'll throw in a mention for a mode I love the idea of but can't effectively use most of the time because of the limited ISO range on my K10 TAv! What a concept! You get most of the creative control of M with respect to DOF and action freeze/motion blur, but with automatic exposure. I love it for indoor sports where you need to react quickly but want control of your shutter speed and aperture. When I scrape together the cash to upgrade to a K5II (or K-3 if it's THAT good), I'll be using this mode a lot more often.
Why no built-in ND filters?
Posted in General Digital Photography chat
It's not entirely clear to me what such a mode would achieve, other than halving the vertical resolution?
Pentax Open Day - 9th October 2013
Posted in Pentax Digital SLRs
If Full Frame is defined as the size of the light sensitive medium used in the analogue forerunner of the digital device in question, then it will be infinitely larger than full frame.
Why no built-in ND filters?
Posted in General Digital Photography chat
Also the small form factor of the Q means that apertures smaller than about f/5.6 suffer from a loss of image quality due to diffraction.
Why no built-in ND filters?
Posted in General Digital Photography chat
But the base ISO is a physical property of the sensor. I can't remember if any Pentaxes do it, but occasionally you see DSLRs with "expanded" ISO at both ends of the range, accessible via a custom function. This is the same thing, and it costs dynamic range.
Why no built-in ND filters?
Posted in General Digital Photography chat
The one on the Q is built into the lenses, not the camera. going below the base sensitivity on the sensor would cost dynamic range, and as we have all no doubt observed, digital sensors behave better with underexposure than they do with overexposure.
What will the new Pentax really offer us?
Posted in Pentax Digital SLRs
If one accepts the "simple incontravertable fact" that 35mm image quality is better than APS-C (which by the way I would argue is more of a good rule of thumb with caveats), then by extension you must also accept that 645 image quality is better than 35mm. Why are the FF brigade not all saving like mad for a 645D?
Another pointless thread
Posted in General Photographic Chat
Wild aplomb..... is that a type of brandy?
New K3 image - interesting!
Posted in Pentax Digital SLRs
If the photos real it looks like there is a switch for AF/MF and a button for AF modeI often get the impression that my contributions are invisible in this forum :roll: - Previously: Looks like "AF Mode" button and "AF MF" switch. Philipif it's any consolation, there was a 3 post exchange surrounding that point, so two of my posts must also have been missed :)
Why use Av instead of P?
Posted in Pentax Digital SLRs
I didn't know about exposure lock in Hyper-M, I'll have to try that and see if my K10 does the same.
Help with buying a Tokina lens in Germany
Posted in General Photographic Chat
Well if he will go around buying the wrong camera body.... ;)
New K3 image - interesting!
Posted in Pentax Digital SLRs
I believe I could put up with that, still prefer the tactile feedback of a switch though.
What will the new Pentax really offer us?
Posted in Pentax Digital SLRs
I've never extensively used anyone elses AF, but I would like the AF on my camera to be better (specifically, faster and more accurate in low light). Granted I am a couple of SAFOX's behind the curve at this point.
New K3 image - interesting!
Posted in Pentax Digital SLRs
I do wish Pentax would do away with the af-s/af-c/mf switch altogether and do it through the quick menu displayed on the rear screen like Canon. It really is so much less fiddlyI really hope they don't!!! I don't want to have to take the camera away from my eye to switch from AF to MF, thank you very much.
New K3 image - interesting!
Posted in Pentax Digital SLRs
You could be right, the splodge under "AF" could be "Mode"
Develop film to RAW?
Posted in Pentax Film SLR Cameras
I had always understood that TIFF was an image format that can be lossless and that RAW was only a container for digital data, not an image?If you think about it, all files are merely a container for digital data, it's the way that data is interpreted which results in a sensible display. I should stress that I haven't pulled one of these files apart so some of this is surmise rather than actual knowledge Like any other image, a RAW file from a DSLR represents a grid of pixels. In the case of Pentax RAW files, what you get is essentially a 12 bit monochrome image. The RAW converter knows that it's a Pentax RAW file, and it knows the bayer pattern used in Pentax DSLRs, as well as the headers for metadata such as colour temperature and bias, tone curves etc. This allows it to decode your RAW file and produce an image.
Why use Av instead of P?
Posted in Pentax Digital SLRs
I once had an interesting conversation with a friend over what the best mode to use for fast action sports was. He argued Tv was the way forward because you want to select your shutter speed to freeze the action. I argued for Av, because my sport of choice tends to take place indoors and I simply wanted the fastest shutter speed available while maintaining correct exposure. In our own way and for our own purposes we were both right. What I'm trying to say is that which mode you choose is of secondary importance to knowing what they all do and what they offer so that you can make an informed choice. I think what we're getting from this thread is an interesting (to me anyway) insight into different aspects of the various modes which are important to different members.
New K3 image - interesting!
Posted in Pentax Digital SLRs
What a wierd shape, I wonder what the reason for that is. Still makes the image less likely to be photoshopped. Points of interest from my POV on that image 1. The built in flash housing looks larger, or am I imagining it? 2. External mic port on the shoulder, not sure if the K-5 already has this? 3. Looks like a flash PC port on the side? nice to see though no surprise in a top end model. 4. No AF.S / AF.C selection on the main AF dial, and a new multi-function button above the AF selector. The top function looks like AF to me, but I can't make out what the second line says.
What will the new Pentax really offer us?
Posted in Pentax Digital SLRs
There is room for adding more focus points and a proper tracking AF system, surely? The K5-ii may have been class leading in terms of low light sensitivity, but i don't see any reason not to continue the improvements!totally agree with this, and in fact it's the only thing they could do that might make me hold off and save for a K-3 instead of taking advantage of any price drop on the K5II once the K-3 comes out. Edit: actually that's not true, a non-crippled K mount would have the same effect, but that seems orders of magnitude less likely. My K10 is looking tired but ultimately it still does the job, I want the best AF I can get when I upgrade because I expect my next camera to be with me at least as long as the K10 has been (I bought my K10 in early 2007)
What will the new Pentax really offer us?
Posted in Pentax Digital SLRs
The question is what benefits we *will* see, rather than what we want to see, right? In that case from what I've seen so far the benefits seem to be - Higher resolution (keeping up with the Jones's, not a big priority for me) - Improved AF - Improved metering And possibly - Ever so slightly improved DR/ISO It's a question that's probably better off answered in a week or so! :wink:This seems like the most likely outcome to me, even with the new AF system on the K-5II, AF and metering still look like the low hanging fruit. Might also see some improvements to the video since that's an area where Pentax lag behind the competition a bit (even though personally I'm quite happy for them to use as little effort in that area as they can get away with, it's important to some people).
Why use Av instead of P?
Posted in Pentax Digital SLRs
I can't speak for the K-5 John, but I'm 90% sure that's not true on my K10D. On green mode you loose menu options, but P is considered a "creative" mode and lets you mess the shot up in any way you like. I believe the cameras which have scene modes on the dial also lock out certain menu options in scene modes and auto-picture, but not P, Av, Tv or M (or Sv and TAv if present). I have my Av mode set to aperture on the rear dial and ISO on the front, and my camera stays in Av mode 99.9% of the time. This may be a leftover from my first introduction to SLR photography on an MV.
Car Interior
Posted in Your Photos
I know nothing about this subject, but for me the lighting in the footwells seems a little high, it's drawing my eyes to them. I'm being very picky though, much better than I would get if I tried the same thing. I wish I'd seen these before I looked around a Jag earlier in the year, it took me AGEs to find that stupid bonnet catch on the wrong side!
Pentax Full Frame Comment
Posted in Pentax Digital SLRs
Time Lapse is what it says, pictures taken after a lapse of time. Usually this means something like a flower opening, so even 99 shots would be more than enough. Shooting 3000 frames at 25 frames a second is a movie, which is quite different, and there is a movie mode anyway. Does anybody actually want to shoot 3000 frames in Time Lapse?When I hear 'timelapse' I think 'timelapse movie'. Because I live in the 21st Century. :Pcertainly a common way of presenting such an image sequence, but I'd be very disapointed if the camera assumed that this was the intended output.