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Forum: Photographic Industry and Professionals 05-14-2020, 09:20 PM  
Pentax - how to stay relevant
Posted By BigMackCam
Replies: 3
Views: 982
I'm closing this thread. There have been numerous discussions about Pentax and DSLR vs mirrorless over recent months and years, including this exact proposal, and they all produce the same variety of arguments for and against (mostly against).

:closed:
Forum: Troubleshooting and Beginner Help 04-13-2020, 01:11 PM  
can you "uncrop" older lenses on APS-C (pentax KP) camera
Posted By stevebrot
Replies: 28
Views: 1,284
Its easy! The basics are:
  • Going wide is harder than on 35mm

  • Going distant is easier

  • Macro is the same except that for a given reproduction ratio (e.g. 1:1) there is less subject in the frame

  • Infinity is still infinity

  • Minimum focus distance remains the same

  • >60mm is long

  • 200mm is the new 300mm

  • 50mm to 58mm is portrait length

  • 28mm to 35mm is normal

  • 24mm and below is wide

  • 16mm and below is ultra-wide


Corollary...If anyone mentions the word "equivalence" or suggests that apertures or anything other than focal length be multiplied by crop factor, react as if the comment is a matter of politics or religion. :p


Steve
Forum: Pentax DSLR Discussion 03-22-2020, 12:40 PM  
Is It Time To Buy That Back Up Camera Body?
Posted By savoche
Replies: 44
Views: 2,162
I'd think most who don't are quite content with having the phone as their backup camera.

For me it's not a big deal. Photography is purely a hobby. I still have plenty of backup options, though. K-1, K-3, GR II, GX80, compacts, phone... More options than I have motivation to use right now ;)
Forum: Pentax Film SLR Discussion 03-19-2020, 10:27 AM  
Pentax ME Super light leak?
Posted By Vendee
Replies: 22
Views: 831
Obviously you are in a better position to judge but from your photo, that felt seal certainly isn't new and it looks quite worn to me. Given that the light leak seems to be the same width from top to bottom, it seems to suggest that the hinge seal would be the most likely cause. On the first photograph that you posted, there is quite a wide area of light damage but you can also see several smaller strips of damage which would have happened as the film was advanced. It doesn't look like a shutter problem to me.

Why don't you put another roll of film in and then tape up the rear camera door, just to diagnose the fault?
Forum: Pentax SLR Lens Discussion 03-11-2020, 05:12 AM  
impressions of the new 70-210
Posted By bdery
Replies: 101
Views: 6,003
I've begun testing the lens for the Pentaxforums review. Here are a few observations.

Sharpness doesn't seem to be a problem, informal testing at wide-to-medium apertures shows that it's close to the 60-250mm in the center. That's not quantitative, just a first impression. It does not disappoint me.

Bokeh is busier than I would like, but not bad.

I have seen no occurrence of PF, even when trying to provoke it. I do observe CA, at wider apertures. It's not prominent but it'S there.

AF is quite good from my limited testing. I have not stressed the lens.

The body feels cheaper than the 60-250, but not cheap. It's tight and will be durable. The lower weight is nice. I don't like the position of the zoom ring, and the reversed hood entirely covers it. It's much, much easier to zoom the 70-210 than the 60-250, which requires a lot of torque.

For the moment bokeh is the biggest letdown for me, not that it's bad but if I'm considering upgrading my 60-250 to that new lens, I expect comparable results and I'm not convinced I'll get there.

Given the price of other lenses in the lineup (for instance the DFA 28-105 and DA 16-85) I'd say, from my limited time with the lens a price somewhere around 1000$ would probably be fairer. There's the new item markup, of course.
Forum: Pentax SLR Lens Discussion 03-02-2020, 07:59 AM  
Is old glass really that good on DSLR
Posted By normhead
Replies: 138
Views: 5,885
Usually the guys who like old glass are paying more attention to the rendering and not so much to absolute sharpness. There is a myth that absolute sharpness creates the most likeable images. My polls have shown over and over again, it's not true. Many prefer a certain type of rendering, and often old glass can provide something modern glass can't. There are guys who check the sharpness, then decide if they like the image. Then they reduce the image in size not realizing that if they'd reduced the image in size before they decided whether or not they like it they would have preferred the rendering of a softer lens.

The only lens I've post in my tests that didn't get a lot of love was my FAJ-18-35. Even my kit lenses have held thier own (selected by the number of people who represent the size of group that would be average for the lenses tested.) And reduced in size, my FA 35-80 won one of the polls although it didn't rate well pixel peeping.

There is little that is as frustrating as the constant barrage of sharper is better people who completely dismiss the value of how a lens renders and image. There seems to be this theory that if you don't know how the lenses render, buy the sharpest. It's a lazy man's way to do it, but far from the best way, unless you like buying lenses you don't really like.

Personally, I would pick up my FA 35-80 instead of my DA 35 2.4. Even though it's much sharper, I don't like the rendering of the 35 2.4, and we've reached a point where most people can't see the difference between a good lens and cheap lens reduced to 3840x 2160.

The only lens I've found that almost no one prefers would be the FAJ 18-35. I'd ask those who are picky about sharpness as opposed to rendering to avoid broadcasting thier opinions. By my guess based on my polls, most of the forum prefer softer lenses with better rendering. The sharpest lens is never going to receive more than at most 30% preference in blind tests. You're far more likely to prefer a "softer" lens by about 2:1.

There is a lot of nonsense out there.

Most of the people who buy lenses for their sharpness would buy something else with more thorough testing based on what they actually do with their images.

I look at the rendering of my FAJ 18-35 and the rendering of sharper glass, and while the FAJ is noticeably softer, reduced to 3840x 2160 for display on a 4k TV, it's images have a character I quite enjoy, for $100 CAD. The differences are ridiculously small and confined to how much of a sign in the picture can be read as the print gets smaller. really, quibbling over absolute sharpness is ridiculous. Stick with "do I like the way it renders at the size I want to display it, and you'll be a lot happier and save yourself a lot of money.

I know there are those conceited enough to think they have to have every image they take of quality that can be blown up to 12 feet by 8 feet, but taking lens purchasing advice from those guys will cost you a lot of money for nothing if all your images are reduced in size before display.

I do of course realize that my testing is never going to get me invited up on stage at a photo expo by lens manufacturers promoting new lenses. I can live with that.
Forum: Pentax News and Rumors 02-08-2020, 01:32 PM  
HD Pentax-D FA 70-210mm f/4 ED SDM WR
Posted By mattt
Replies: 1,454
Views: 110,579
Here's a private album..... --> Right Here <--
Forum: General Photography 01-21-2020, 05:07 PM  
Flickr price rise
Posted By aoeu
Replies: 44
Views: 1,815
This is a price I'm willing to pay and I'm cheap. I like the service. Pencil this one into next month's budget and forget it for a few years.
Forum: Pentax News and Rumors 01-01-2020, 12:20 PM  
K-new will be released THIS year
Posted By monochrome
Replies: 227
Views: 15,151
So much for trying to make a positive thread for the new year. Jeez. I might have to Ignore my own thread.
Forum: Photographic Industry and Professionals 12-23-2019, 11:04 AM  
No more Sigma lenses for Pentax.
Posted By BigMackCam
Replies: 6
Views: 814
This has been discussed at length in many threads, the most recent of which is here:

Sigma stops K-Mount support - PentaxForums.com

Respectfully, therefore, I'm closing this thread.
Forum: Pentax Mirrorless Cameras 10-28-2019, 05:03 PM  
What does it really take to create a mirrorless camera?
Posted By boriscleto
Replies: 70
Views: 4,598
:deadhorse:
Forum: Pentax News and Rumors 09-27-2019, 08:54 AM  
New K-series DSLR under development to be exhibited
Posted By photoptimist
Replies: 3,487
Views: 259,615
This debate about mock-ups vs. prototypes seems to be a battle between the optimists who say the camera is half finished and the pessimists who claim it is half unfinished.

The bigger point is that the camera is coming!

Moreover, this new camera clearly in a much more advanced state of development that when they showed the K-1 as an obvious 3-D printed mockup 12 months before the camera came out. In contrast to the printed K-1 mockup, the new camera clearly has all the internal optical tidbits, buttons, displays, painted markings, etc that were missing in the earliest K-1 teaser. It seems a lot more finished than not.
Forum: Pentax News and Rumors 09-24-2019, 12:13 PM  
New K-series DSLR under development to be exhibited
Posted By stevebrot
Replies: 3,487
Views: 259,615
My thoughts are that anyone who bought a KP and is happy with it would be just as happy staying with their purchase. The KP is a very nice camera.


Steve
Forum: Pentax News and Rumors 09-22-2019, 09:30 AM  
New K-series DSLR under development to be exhibited
Posted By ffking
Replies: 3,487
Views: 259,615
It's a camera with something for everyone - even the doom-mongers :)
Forum: Pentax News and Rumors 09-13-2019, 10:35 AM  
"Ricoh/Pentax has no plans to announce a new camera this fall"
Posted By BigMackCam
Replies: 869
Views: 53,811
Folks - please, you all know the forum rules with respect to politics. Help us help you ;)
Forum: Pentax Mirrorless Cameras 09-06-2019, 09:00 AM  
How hard would it be...
Posted By Kunzite
Replies: 38
Views: 4,328
The Pentax brand doesn't have the same weight as Leica, and likely it cannot survive at whatever the Bessa R sales volume were. Making a slight buzz on the Internet amounts to nothing.

There is no shortcut. The existence of the GR III and the DA Limiteds won't make the task significantly easier, and - quite important - won't free up resources required to launch a new MILC system. I do not get this assuming MILC must be a priority goal - is it truly the best way to serve their loyal user base?
What I want to see from them is renewing the K-mount line, cameras and lenses, until it's all modern and reasonably complete. If they wish to pursue MILCs after that, good luck to them.
Forum: Pentax K-70 09-02-2019, 12:32 PM  
Metering question + one more
Posted By photoptimist
Replies: 3
Views: 610
With any kind of metering, the camera basically assumes that the overall scene is light gray. There's no way for the camera to tell the difference between a black wall in bright light and a white wall in dim light. The camera only sees the reflected light from the surface which mixes the effects of the light source and the surface.

In the case of your image, the "true" scene (and desired photo) is quite dark -- dark green leaves in shadow. (The camera's exposure choice was perfectly predictable given that the camera could not know it was looking at dark leaves in shadow.) Spot-metering that shiny center leaf (which is of light gray tone) got the right exposure. But if the center had been a dark green leaf, spot metering the center would not have worked (but metering a light-gray part of the scene and recomposing would have).

More generally, this type of photo is best handled by Exposure Compensation which is the photographer's way to telling the camera that the scene is darker or lighter than normal.
Forum: Pentax DSLR Discussion 04-24-2019, 03:54 PM  
Quality of memory cards
Posted By BigMackCam
Replies: 16
Views: 1,546
To avoid confusion, though, these articles have nothing to do with the quality of images as queried by the OP. They're useful regarding compatibility, performance, quality and warnings about fake cards... but the fact remains, SD cards do not have an impact on image quality. So long as the digital information can be successfully written to, and read from, the card without error, the data - and, hence, image quality - will be the same, as is the nature of digital storage...
Forum: Pentax DSLR Discussion 04-24-2019, 03:41 PM  
Quality of memory cards
Posted By BigMackCam
Replies: 16
Views: 1,546
No. Different cards will offer different read / write speeds, and different levels of reliability (though all of the major manufacturers are excellent - just be sure to buy genuine cards). But they have no impact on image quality, since the data is stored digitally. So as long as it can be written and read, it will be the same regardless of the card used :)
Forum: Pentax K-70 04-21-2019, 12:09 PM  
is the K-70 likely to get another firmware update?
Posted By stevebrot
Replies: 38
Views: 2,747
There is a small contingent of MILC fans here on PF that sing the firmware update song fairly frequently here. The usual phrase goes, "X can be done with only a simple firmware fix..." followed a few sentences later by "Panasonic/Fuji are particularly good at providing value added features as firmware updates several times a year" (or something like that). My standard answer is that Pentax cameras are generally feature complete at time of release, unlike some other brands.

That being said, there may be a few other reasons related to the differences between MILC and dSLRs. Most of the functionality of a Pentax dSLR is provided by the choice of main controller chipset and the controllers built into essential components (sensor, shutter, mirror, AF drive, SR, etc.). Most of the high level firmware on our cameras rely on scripted "hooks" directed at specific features exposed by the component vendors and/or deeper levels of flashed code while I suspect that most MILCs operate using something closer to an embedded operating system handling multiple functions directly. This last is similar to a cell phone.

If the Milbeaut controller in my K-3 does not support 4K video or electronic shutter, even the best attempt at a firmware feature upgrade cannot provide such without a change in hardware. No, we can't support an accessory shoe mounted EVF with just a simple firmware update.


Steve
Forum: Troubleshooting and Beginner Help 03-21-2019, 12:46 PM  
Help with Pentax MV Asahi
Posted By scc
Replies: 23
Views: 1,579
Th MV has an electronic shutter, it needs a battery to operate. Except for the B setting which is mechanically operated.
I suppose you checked the battery?
Forum: Pentax News and Rumors 03-01-2019, 03:20 AM  
My Report from CP+ 2019
Posted By JPT
Replies: 238
Views: 20,963
This year I was able to go to CP+ on the Friday rather than the Saturday. I was hoping that a weekday would make it easier to get around and see things. It was, but still got busy after midday. The nature of the crowd is a bit different on the Friday. There seemed to be more pros, industry people and elderly people. On the other hand there were fewer couples and casual visitors in general. I guess it is what you would expect of a weekday.



The Ricoh Imaging Booth
The Ricoh booth was the same size and position as the previous year, but the layout was different. The space was divided into three zones with the GR at the front, Theta in the middle and Pentax at the back. There stage area and a small gallery behind it. Overall there was quite a lot to see. Youve probably seen the revised roadmaps and 85mm mock-up already. The 85mm had a black plastic disk where the glass should be, but a staff member told me this is normal procedure because they dont want people spying on the optical formula. The booth was busy the whole time I was there.

GR III
The first thing I did was to queue up for a bit and try out the GR III. As a user of the very first GR Digital model, Im very happy about the smaller dimensions than the GR II. Because it has more weight in it, it has a better feeling of solidity. There is still a huge amount of customisation available. The touch screen is very responsive, and I was pleased to find that you can use the screen one handed with your thumb without too much difficulty - no need to adjust your grip. One aspect I had not heard mentioned before was manual focus. I found this easier and more intuitive now, because the circular wheel around the D-pad can be used for this purpose. Its still a bit fiddly, but better than up/down buttons. Overall the GR III was every bit as good as Id hoped for and Im going to buy one.



KP Custom Model
So far the coverage of this seems completely to have missed the point. These two guys are proposing the idea of a kind of a sub-brand offering bespoke customisation. The KP they are showing is just an illustration of this idea. Theyve even made up a logo for the brand. They are experimenting with the kind of tweaks and tuning that car/bike enthusiasts do to soup up their machines. They realize these will never be mass produced as mainstream cameras, but they are trying to gauge interest. That KP in his hand has a cool replacement mount made of some shiny grey carbon material. It was quite interesting. They were very keen to speak English to me, and seemed to love the fact I was still using a K-01.



Theta Z1
While the whole booth was busy, this part seemed to be busiest, perhaps because it was so small. They had small explanatory presentations and some deconstructed Z1s. Its really impressive how they use prisms to package so small. The little OLED screen looks cool too. Id like to see one on a K-mount camera in future.

Pentax 100-year Anniversary
Given that most of the recent releases have been Ricoh products, Pentax was a bit overshadowed by the GR II and the Z1 this time, but they did have reasonable amount of space, with a counter to try out the new lenses. A number of the presentations focused on Pentax and the new lenses in particular. There was also promotion for Pentax 100. Between presentations they were showing was a nice video on the screen with people holding a selection of Pentax cameras over the years. The images changing timed to drum beats. It was bright and cheerful and I hope they make it available online soon. They said they are not planning a specific anniversary model. Their new models will be forward looking, not commemorative. For the celebrations, there will be events around the world in the months leading up to the actual date in November.

Other manufacturers
I looked round all the other manufacturers. The tone of their stands were much the same as previous years (bland corporate), and they are all pretty much the same as each other. Now that all the companies are primarily pushing mirrorless mounts, it feels like they are coming out with near-identical systems. The only thing that differentiates them is FPS, bitrates and so on. The galleries show that all of these cameras are capable of taking fantastic images to be displayed at any reasonable size. So what sets anyone apart now? It seems to me that Ricoh/Pentax is really the only company that is making cameras that feel different to use. As Pentaxians, I think its time to stop wishing that Pentax would emulate the other makers and appreciate Ricoh/Pentax for its own strengths.

From my own perspective it was quite a good CP+. Im totally positive about the changes to the GR III. Also a new standard zoom for APS-C is something I would potentially be very interested in, so I'm glad it was added to the roadmap. And most of all, I think both Ricoh and Pentax remain unique brands that I can happily associate with.
Forum: Photographic Industry and Professionals 12-21-2018, 07:27 AM  
Need guidance in responding to a possible troll or just venting
Posted By BrianR
Replies: 18
Views: 2,089
I offer a 3 step program to dealing with people you consider YouTube trolls:

1) Stop watching this persons videos.
2) Don't share links to their videos.
3) Go engage in an activity you find enjoyable.
Forum: Photographic Industry and Professionals 11-02-2018, 07:42 AM  
flickr - cutting down accounts from free 1,000 GB to a meagre 1,000 photos
Posted By photolady95
Replies: 5
Views: 809
Please, next time, do a search before posting this type of thing, we've closed three or four of thise threads already.
Forum: Digital Processing, Software, and Printing 11-01-2018, 10:34 AM  
Flickr is going back to limited free accounts
Posted By DeadJohn
Replies: 165
Views: 8,605
How do you propose they fund their operations? You're complaining about paying. If they show advertising, people complain about having to view ads. If they sell our data to other companies, people complain about privacy. If they run on a tiny budget, we get slow servers and unfixed bugs.

Flickr is a for-profit company rather than a charity financed by donations and staffed by unpaid volunteers. Even if the corporate owners make zero profit, they have to pay software developers and other staff. The server farm needs to be paid for, whether Flickr keeps their own hardware or rents cloud space. The local utility turns off the power if bills aren't paid. Property taxes. Etc.
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