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Forum: Pentax K-5 10-06-2012, 01:08 AM  
Possible new firmware coming ?
Posted By conradj
Replies: 29
Views: 3,821
One of the things i really like abt the CHDK firmware for Canon P&S cams is that it lets you specify how the auto ISO should work. i wish Pentax would do something like that, more than just setting a max value for ISO. i shoot enough in indoor low light situations that it'd be a boon. Taverns, cafes, pubs, restos, night time indoor and outdoor fairs, big variations in light in all those places and i end up having to shoot full manual to handle the range of lighting conditions, it slows me down enough i miss a lot of shots or get the shutter speed or ISO wrong.
Forum: Pentax News and Rumors 10-05-2012, 03:22 AM  
K5IIs sample?
Posted By conradj
Replies: 349
Views: 105,707
Quite a noticeable difference. The K-5IIs shot of the rooftops is blurrier than the K-5II, but even so looks like it has better detail. The tile shots have such a pronounced difference it looks like the K-5II one is out of focus.

Peer if you have the original prints or have at least examined them: what differences do you see, and how big are these differences?
Forum: Pentax News and Rumors 10-03-2012, 12:04 PM  
The Pentax K-01 is a special model, not a new line of cameras
Posted By conradj
Replies: 193
Views: 18,633
Me, i like the K-01, except i think Pentax shoulda bolted Marc Newson into a chair and given him a crash course in camera ergonomics before they set him loose in the design studio.

The camera itself shows signs of being done on the cheap: That mirror box could be a lot emptier with more room for lens elements to protrude into the cavity, instead of what it looks like which is a mirror box without a mirror, and that must be just from not spending any developmental budget on redoing it. They don't even have to make room for the PDAF bits anymore in that camera.

It's a great idea to have a a part of the lens behind the mount, both in terms of solidity and protection, not to mention a more compact lens geartrain for AF, once there's no need to have the mirror in that box anymore. Pentax really didn't make the most of that idea, and they even knew all abt it given their prototype lens that stuck out behind the mount.

Of course, if iit doesn'tt cost a lot to engineer then they don't lose much if they don't continue the line.
Forum: Pentax News and Rumors 10-02-2012, 01:54 PM  
Official K5II and K5IIs sample is out with DA * lens
Posted By conradj
Replies: 187
Views: 42,371
The detail in the trees in the K-5 IIs shot is definitely better than that in the K-5 II shot, and better than what i get out of my K-5.
Forum: Pentax News and Rumors 10-02-2012, 01:47 PM  
Q10 Official Sample
Posted By conradj
Replies: 9
Views: 2,506
From these couple shots it looks like the telephoto zoom resolves better than the standard zoom, and the shot with the standard prime does seem to indicate the Q10 sensor is better than the one in the Q (i'd previously only ever looked closely at Q shots made with the prime)

Hm, it looks like the Q10 clears whatever minimal IQ standards i have for a compact camera. The kit with the 2 zooms, or a kit with the prime and the telephoto zoom, those would prolly work for me, provided i become complacent with the various other tiny-sensor IQ quibbles, like the fairly prominent mottle of base ISO noise in flat areas.

i'm using a Canon Elph 100HS at the moment for a compact, with CHDK to give me DNG RAW files, and know i can prolly deal with the noise of these tiny sensors up to around 500-600ISO, and that the noise pattern is not too ugly there.
Forum: Pentax News and Rumors 08-25-2012, 11:00 PM  
Patents for the Upcoming K-3?
Posted By conradj
Replies: 51
Views: 16,676
... mirror shake is a large part of what image stablisation has to compensate for in any SLR ... wtih MF, bigger mirror, bigger shake, bigger compensation needed.

i used to shoot a Mamyia 645, it definitely needed a faster shutter speed to cancel out the mirror shake than any 35mm SLR in those days.

And on the K-5, if i shoot a normal lens in liveview with SR switched on i can hand hold it down to 1/8s and have a reasonable chance of getting a sharp image, while using the viewfinder (and therefore with the mirror in operation) 1/25s is as low as i'll comfortably go.
Forum: Pentax News and Rumors 08-25-2012, 12:50 PM  
Patents for the Upcoming K-3?
Posted By conradj
Replies: 51
Views: 16,676
More likely MF SR is a biz decision, i.e. how much it'll cost to engineer and produce in tiny quantities, espesh as it looks to be a tougher nut to crack than APS-C SR due to the increase in mass, both in the sensor platform and that big, swinging mirror.
Forum: Post Your Photos! 11-30-2011, 10:22 PM  
People Asian Girl
Posted By conradj
Replies: 7
Views: 952
this and your random people portraits, amazing stuff.
Forum: Pentax DSLR Discussion 11-23-2011, 04:44 AM  
Diopter brainstorm
Posted By conradj
Replies: 20
Views: 2,897
What abt contact lenses? Do those help or hinder?
Forum: Pentax K-5 11-23-2011, 04:42 AM  
K-5 Battery Life and Backpacking
Posted By conradj
Replies: 34
Views: 4,203
With my K-5 i turn off everything that automatically switches on the rear LCD, turn its brightness down a tad, switch off AF assist light and backlight on the top LCD. Set the camera to power down the meter after 10s, sleep after a minute. i leave the SR on since i do a lot of low light shots. Turn off AF with the shutter button, use the back panel AF button. Leave the NR on auto. Don't do any in camera PP, save RAW + high quality JPG's. The largest shoot i've done with this camera was this newest set that's on my flickr, 4 and a half hours or so in the metro maintenance yards and underground, in the middle of the night. Didn't skimp on in-cam reviews, just used the camera.

Took abt 460 shots mostly between ISO400-1600, deleted perhaps 60 while i was shooting. Battery was one notch down at the end of it. Figure i prolly could count on it lasting another 70-80 shots, dunno after that.
Forum: Pentax DSLR Discussion 11-20-2011, 01:08 PM  
Handling Differences between Pentax and other brands
Posted By conradj
Replies: 37
Views: 6,453
i'm a very basic photographer when it comes to the level of complexity i'm willing to manage while i'm using the camera. If i have to twiddle more than one button and one dial i start looking for a rock to bash the lens in. The K-7 and the K-5 almost lets me work that siimply while giving me all the control i want over how it goes abt its business. i can specify pretty thoroughly how it automates itself so it does things the way i understand it.

That's no easy feat of ergonomic engineering. The menu system doesn't look like an iphone, but it's completely functional; everything's a couple of twiddles away with one or the other dial, nothing's deeply buried inside layers of menus, everything's logical with a general kind of basic mechanical logic, nothing is arcane or twisted or pointless.

The camera body is designed the same way. Everything you actually need to have is there, organized into the least number of control interfaces as will maintain simple, flexible control. And you definitely get the impression it's been designed by people who've lived with and used cameras for a long time, rather than a bunch of high flyers straight out of design school whose term project was to design an electric shaver that looked like a flying saucer remote control from Area 51.

It felt like a camera the first time i picked it up. It lets me use my lenses to their best advantage. It doesn't get in my way when i use it. In fact i pretty much take it for granted the camera will make it easy for me to get the shots i see.

--i did build up the hand grip to fit my hand better. It's because i don't want to put the thing down.
Forum: Pentax DSLR Discussion 11-17-2011, 07:50 AM  
K-7 High ISO Success!
Posted By conradj
Replies: 108
Views: 45,639
Erm, forgive my ignorance, but if you're going to apply +.7 to +1 EV to ISO3200, why not just shoot with 0EV at ISO1600 to ISO2000?
Forum: Pentax Q 11-16-2011, 07:53 AM  
Pentax Q lenses tested by Photozone
Posted By conradj
Replies: 9
Views: 3,506
Klaus thank you for these tests.

It's great that Klaus's tested the main lenses for this system since it's a relatively stable objective standard that bypasses processed corrections of images that come from the tested lens, plus we all own lenses he's tested and have a feel for how his results translates into our own working methods, and can therefore gleam something abt what the lens in the test would be like in our own use.

It certainly helps make more sense of the images i've seen made by these lenses, in terms of what i'd be able to do with the equipment.

My problem is that for me the decision of whether to go for this system depends a lot on how it compares to compact cameras, which is beyond the scope of Photozone. Like right now the Canon S100 is an interesting choice and i don't really have a feel for how its lens compares to the Q standard zoom across their ranges.

The sensors in these cams i don't worry abt too much since i've lived for years with the Canon A650 and its sensor is abysmal compared to current tech.

... remember when compact camera sensors were a mess of noise even pushed just 1 stop over base ISO? And ever present shadow noise?
Forum: Pentax Q 11-16-2011, 04:19 AM  
Wouter Brandsma on the Q
Posted By conradj
Replies: 3
Views: 1,586
That old style, push processed film look, often with a filter of some sort on the lens, then printed on high contrast paper, used to be lots of it around. Make anything look interesting.

Hm, mebbe i should do more of it then.
Forum: Pentax Q 10-21-2011, 01:41 PM  
Digital Camera Info Q review
Posted By conradj
Replies: 5
Views: 1,648
i didn't see anything abt RAW files either. They also tested long exposure at ISO400, which i find somewhat incomprehensible as long exposures above base ISO will only ever amplify sensor noise and cause the camera to turn up the noise reduction.

Some test reports, and this is one, have a feel to them that causes me to think; Here's something written by a child of the digital age.

Edit: i don't mean that pejoratively. Overall that site does pitch itself to the advanced amateur market segment that don't do RAW files, a thing i don't have a problem with as it means they do detailed reviews of cameras that usually don't get such scrutiny.
Forum: Pentax Q 10-21-2011, 07:26 AM  
Digital Camera Info Q review
Posted By conradj
Replies: 5
Views: 1,648
Pentax Q Mirrorless Digital Camera Review - DigitalCamerainfo.com

Edit: Pretty interesting read, the part explaining how the results i've seen from the 01 Prime is partly from in-cam processing, stuff like the low aberrations, distortion and wide open sharpness. They say it performs best around f3.5, and that the performance slacks off by its minimum stop of f8.

What they say abt the Q sensor is pretty much as you'd expect, that it holds up surprisingly well compared to other mirrorless systems cameras, but is still a compact sensor.

They praise the handling and function of the diminutive body.

When will someone give the Q zoom a thorough test report?
Forum: Pentax Q 10-02-2011, 12:33 PM  
Tried the Q yesterday ...
Posted By conradj
Replies: 18
Views: 3,198
i remember the techradar review mentioned it and it did give me pause since i've lived for years with my Canon A650IS + CHDK and that thing locks up for 6-10s after every shot when shooting DNG. Did you download some of those photographyblog Q DNG samples to play with? they're like 22M each.

Though, i don't suppose Christine Tham was shooting RAW when she tried it out.

perhaps Pentax will come out with firmware that makes that better.
Forum: Pentax Q 10-02-2011, 06:31 AM  
Tried the Q yesterday ...
Posted By conradj
Replies: 18
Views: 3,198
i get you 100%, just think one must give the photographer the benefit of the doubt on that one, that they'll be able to suss out when and when not to use that kind of automation. i've been asked plenty of times, as i'm certain you have been also, to take a picture of some people at some point in time when you really would rather save your concentration for something else, plus you know they want exactly some kind of standard smiling heads thing, which would still take some attention to get right. Tell them to go away, or put the camera on some kindo full auto that includes auto multi-shots with auto brain-free in-focus happy head selection.

and if the photographer doesn't want to know anything abt doing the critical esthetic thing themselves, just means if they get that camera it'll be one less person who'll come and bug you to do it for them.

of course if one's bread and butter happens to be brain-free in-focus happy heads, then that's another problem completely.

and then some of us, like me, are just naturally happy-headed, since we spend most of our time tied down in a rubber room at the funny farm, on a diet of happy pills. That's why i need autofocus, i haven't any myself.
Forum: Pentax Q 10-02-2011, 02:45 AM  
Tried the Q yesterday ...
Posted By conradj
Replies: 18
Views: 3,198
Well no, don't be so critical abt that working method until you've thought abt it.

i grew up with film i could barely afford which i had to make time to develop myself, so my working methods like many of you is very sparing of the number of frames i shoot ... BUT, if you think abt how we see and remember people, what we retain of them as iconic and representative of their individuality, it can be described as a selection of one moment out of a spectrum. Our memory retains the frames we choose to, and we file and tag those selections as what such and such a person looks like in their natural state showing their personalities. The other ones that look like ostriches or hippos we just forget. Except ifn we don't like the person.

And when one thinks abt most of the famous photo portraits that exist, well, how many of them were selected out of a bunch of shots we never get to see, and how many are one-offs?

... except for smeggypants of course. He shoots mostly masterpieces.
Forum: Pentax Q 10-01-2011, 07:43 PM  
Tried the Q yesterday ...
Posted By conradj
Replies: 18
Views: 3,198
Good, thanks. Been waiting to hear what you thought of the thing. In what kindo light conditions did you use the AF?
Forum: Pentax DSLR Discussion 09-30-2011, 01:00 AM  
sudden increase in long exposure noise
Posted By conradj
Replies: 10
Views: 2,340
Does the K-7 menu option to map out hot pixels do anything for you?
Forum: Pentax K-5 09-26-2011, 01:33 AM  
Update Firmware
Posted By conradj
Replies: 2
Views: 1,433
Hope it went well!
Forum: Pentax K-5 09-26-2011, 01:04 AM  
does anyone have an ICC camera profile for K-5?
Posted By conradj
Replies: 9
Views: 4,584
Here is the same shot, first one inported with ufraw into the gimp without a colour profile, second using Emacs's. The second one needs work, but it's a much better place to start from than the one without a colour profile.


K-5, SMC-FA28-105 IF, ISO80, f11, 15s, EV0, no colour profile



K-5, SMC-FA28-105 IF, ISO80, f11, 15s, EV0, with colour profile
Forum: Pentax K-5 09-25-2011, 08:36 PM  
does anyone have an ICC camera profile for K-5?
Posted By conradj
Replies: 9
Views: 4,584
patches of red with blue in it you mean, and areas that are greenish? That's the way that skin there actually is, tho emphasizing it isn't exactly complimentary. It's all PP tho as by any standard lighting definition the man's face is in shadow, illuminated by bounce light from red purplish walls. Plus colour and contrast modulation is getting pretty iffy by ISO1000-1250, contrast starts to take jumps and stuff go red abruptly.

--o i was just looking for colour profiles that'll bring me reasonably close, so the one embedded in the DNG works. For that matter results from the one i extracted out of the K-7 DNG are actually easier to deal with: less red.

Finding that the ICC profile that Emacs posted works quite well for night time exterior urban and suburban shots.

All happy stuff: since i started using these ICC profiles in ufraw, been spending a quarter of the time i used to in PP.
Forum: Pentax K-5 09-22-2011, 07:56 AM  
does anyone have an ICC camera profile for K-5?
Posted By conradj
Replies: 9
Views: 4,584
i downloaded Adobe's beta of their DNG Profile Editor and used it to extract the colour profile out of a K-5 DNG, at both 6500K and 2850K, then converted them into ICC profiles using dcp2icc.

Been using those the last few days. They do make PP much easier tho they run out of steam in the shadows of the ISO1000-1250 ambient light portraits i was shooting on Tues. Those still go red; it does gets me in the ballpark for acceptable skin tones so i'm a happy camper.

Not a great shot and has a blown spot, but indicative of what i'm now getting:

K-5, Rokinon 85mm f1.4, ISO1000, 1/15s, f1.8, -0.3EV

The environment has no direct light on the people at the mike and deep red walls ...

--i tried that ICC profile from that post that you linked to, Karl; skin tones are a bit green for what i'm looking for-- have to play with it more to see if it's actually better.
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