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Forum: Troubleshooting and Beginner Help 10-07-2021, 07:57 PM  
Artifact on photos from K7
Posted By tallytvguy
Replies: 20
Views: 884
Thanks for all the possible explanations and ideas.
Forum: Troubleshooting and Beginner Help 10-07-2021, 09:59 AM  
Artifact on photos from K7
Posted By tallytvguy
Replies: 20
Views: 884
Well, thanks everyone. The K50, I bought new, so it was upsetting to stumble into the aperture block problem. The K7 had a shutter count around 13K when I got it, so it may be up to 16K now, it looked good cosmetically and responds to the various menu commands, etc. I thought I'd covered all the bases.

The weird lines seem to be a) intermittent or b) hard to see under different light conditions when the photo was taken, I guess all I can do is keep observing.
Two questions come to mind from the replies above -

Jonathan Mac said it's not surprising to see lines cropping up in shadows -- are the shadows a common area for problems?

Medex asked if I'd tried shooting the black frame on another SD card? What might that do?
Forum: Troubleshooting and Beginner Help 10-07-2021, 07:35 AM  
Artifact on photos from K7
Posted By tallytvguy
Replies: 20
Views: 884
This is all disappointing. I'm employed at a small cable TV channel and a lot of my work is with video cameras. I enjoy photography as a hobby but haven't had time to do a deep dive into digital photography technology. So, when Medex mentions taking the black image I shot and increasing it by +5eV, it's a little beyond me.

Is this a standard way of testing something? Medex mentions the green and purple lines are supposed to be homogenous -- I guess a link to a black image that looks right would help me. Medex also mentioned using another SD card -- that could make a difference?

Jonathan Mac says the K7 sensors are the worst Pentax ever used and that's shaking my faith in Pentax because I have a K50 that has the infamous black frame/aperture block failure, (I sent it to the company in California that fixes the problem and it cleared up for a while). I was happy with the iST D that I had, last I heard, it was continuing to work for the family member I gave it to.

If the sensor is awful, is there a fix/replacement, or do I just "eat" another bad Pentax, (I bought it used, thankfully). I've been cynical about Nikon and Canon because of the cost of trying to get into their good/better cameras and lenses but now I don't know what to think.
Forum: Troubleshooting and Beginner Help 10-06-2021, 05:19 PM  
Artifact on photos from K7
Posted By tallytvguy
Replies: 20
Views: 884
I uploaded the photos above to the cloud -- jpeg and raw versions. I also took the :30 black frame exposure suggested by ProfessorBuzz and uploaded .jpg and raw versions of it -- k7b_0947. The link is below.

Update your browser to use Google Drive, Docs, Sheets, Sites, Slides, and Forms - Google Drive Help

Thanks again.
Forum: Troubleshooting and Beginner Help 10-06-2021, 09:24 AM  
Artifact on photos from K7
Posted By tallytvguy
Replies: 20
Views: 884
Ok, I'll try that. When I've done it, if I want to share the raw image, will uploading it to my cloud account and sending a link work?
Forum: Troubleshooting and Beginner Help 10-06-2021, 08:44 AM  
Artifact on photos from K7
Posted By tallytvguy
Replies: 20
Views: 884
Hi -

I took some photos at an event a couple of weeks ago and found that some of them have a thin green vertical line starting in the upper left part of the photo. I'm including two of those - K7b-0596 and K7b-0599. I also found an image with a purplish vertical line I'm including it also - K7b-0601. I'm using a K7 for the photos.


The artifacts weren't visible on all the photos -- I'm hoping that means they weren't on all of them. Does anyone have any thoughts about what the artifacts are and if there's anything to be done about them?

Thanks,
Gil
Forum: Troubleshooting and Beginner Help 05-06-2021, 10:39 AM  
SD card size and type for K7?
Posted By tallytvguy
Replies: 15
Views: 2,723
Sorry it's been a while since I checked this thread. I upgraded the firmware on my K7 to the latest, (and probably final) version about a week ago and began using a 64GB memory card. It's working fine -- it will be quite a while before I fill it totally, if ever.
Forum: Troubleshooting and Beginner Help 04-19-2021, 06:56 PM  
SD card size and type for K7?
Posted By tallytvguy
Replies: 15
Views: 2,723
Good to know someone was able to use a 128gb card.
Forum: Flashes, Lighting, and Studio 04-17-2021, 05:48 PM  
Want to use a Youngnuo 560 III with a K7
Posted By tallytvguy
Replies: 7
Views: 715
Great info - Thanks!
Forum: Flashes, Lighting, and Studio 04-17-2021, 05:58 AM  
Want to use a Youngnuo 560 III with a K7
Posted By tallytvguy
Replies: 7
Views: 715
Hi -

I recently got a K7 camera and I have a Yongnuo 560 and flash bracket and I'd like to use them together.

Has anyone used the 560 with the K7 -- how did they work together? If I use if off camera with a bracket am I better off using a sync cable, or the camera's wireless flash function? Or can the flash be triggered by the K7's built-in flash?

A final question -- since I haven't used my bracket and sync cable in years, I found that one of the connectors on the cable is the wrong size -- it was probably for a previous piece of equipment. If I buy a new cable, how do I make sure it has the connectors I need?
I guess I'm asking "flash photography 101" questions -- thanks for the help.
Forum: Troubleshooting and Beginner Help 04-11-2021, 07:30 PM  
SD card size and type for K7?
Posted By tallytvguy
Replies: 15
Views: 2,723
Thanks everyone for the insight.
Forum: Troubleshooting and Beginner Help 04-03-2021, 10:16 AM  
SD card size and type for K7?
Posted By tallytvguy
Replies: 15
Views: 2,723
Thanks -- I was thinking about trying a 64GB card, I'm glad to hear it works in your K7.
Forum: Troubleshooting and Beginner Help 04-03-2021, 08:39 AM  
SD card size and type for K7?
Posted By tallytvguy
Replies: 15
Views: 2,723
Hello - I'm buying a used K7 and I want to make sure I have a compatible memory card for it, since cards have advanced far beyond what the K7 manual recommends.

I've read that the firmware needs to be upgraded from the original firmware for the camera to accommodate an SDXC memory card. So, when I have the camera in hand, I'll check the firmware and if it needs upgrading, I'll do that.
But I still don't know the highest level specification memory card for the camera. I read a Pentax Forums article about memory cards - Comprehensive SD Card Guide for Photographers - Articles and Tips | PentaxForums.com

that recommended using a 32gb SD card if a person was using an older Pentax camera - the article is from 2016 and I don't know if they meant the K7 or not. Does anyone have any idea about the card size to use?
Forum: Digital Processing, Software, and Printing 05-28-2015, 10:20 AM  
Need old Pentax Digital Camera Utility Software
Posted By tallytvguy
Replies: 0
Views: 1,576
Hi -
I run Ubuntu (vers. 14.04) on my laptop. One task I use my laptop for is to work on process photos in my spare time. I've tried several Linux-based photo processing programs. They're all capable and I can get good results from them. However, I believe the Pentax processing software works very efficiently because it puts all the essential adjustments together, or makes them easy to get to. So I want to use the Pentax software on my laptop (I realize the Pentax software versions I've worked with 2.1 - 3.61 were made by SilkyPix).
I've installed WINE, the Linux program that allows you to run windows software, then the Pentax processing software. I've found that versions 3.61 and 3.51 have a display problem in the photo lab window that causes vertical stripes and green-blue discoloration. I've found that the oldest version of the software I have - 2.1 doesn't have this problem. I'd like to try using version 3.0 of the browser and photo lab software (PPBRWS03.exe and PPHLAB03.exe) but I can't find them online. Does anyone know if these versions are subject to distortion run in Linux (using WINE), if not, does anyone know where I can download them? (Or if there are later versions of Pentax processing software that don't show distortion when run in linux?)

Thanks
Forum: Welcomes and Introductions 12-10-2011, 11:38 AM  
Hello
Posted By tallytvguy
Replies: 1
Views: 507
Hi all -
I work in the video field, so I use basic photographic skills a lot. However, I don't often get a chance to do the really artsy or adventurous photography I admire from accomplished photographers. So I'm looking around for opportunities to elevate my photography -- while keeping it enjoyable (like I say, I look through a viewfinder a lot anyway, so if I'm doing it during free time, I want to impress myself). Learning from other Pentaxians seems like it will be helpful, so I'm glad to be here -- thanks.
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