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Forum: Pentax SLR Lens Discussion 10-24-2017, 10:31 AM  
Sigma mini-wide 28 2.8 doublet element
Posted By Odinz
Replies: 2
Views: 350
I have a few older Sigma lenses from the 28 mini-wide era, and have successfully "partially" disassembled a few of them to clean internal lens surfaces. I don't know specifically about the mini-wide, as I have only ever had to take the front element out of that one. But what I've found is that on at least some of their older lenses, some of the internal assemblies are press fit together or even glued together making cleaning them rather difficult.
Forum: Pentax Film SLR Discussion 10-24-2017, 07:51 AM  
Pz-1p/ z-1p
Posted By Odinz
Replies: 6
Views: 461
They are the same camera, I think the different names (Z vs PZ) referred to the market where they were sold. The difference between the Z-1/PZ-1 and the Z-1p/PZ-1p is that the p version has a panorama mode and the menu options are a little different.
Forum: Photographic Technique 06-26-2017, 04:44 AM  
Fitler for eclipse
Posted By Odinz
Replies: 4
Views: 510
I concur on the Thousand Oaks filters, no complaints.
Forum: Pentax SLR Lens Discussion 06-22-2017, 07:36 AM  
Correct focal length when asked by K3
Posted By Odinz
Replies: 4
Views: 438
I usually try to input a focal length that's close to the resulting lens+teleconverter
Forum: Troubleshooting and Beginner Help 05-26-2017, 05:54 AM  
Is this a K-Mount compatible?
Posted By Odinz
Replies: 9
Views: 643
I agree with UMC, looks like a Yashica/Contax mount
Forum: Pentax Film SLR Discussion 05-03-2017, 05:19 PM  
Pentax LX Build Quality
Posted By Odinz
Replies: 25
Views: 1,653
In all the years I've had my LX the word cheap never crossed my mind.....wait, I did have to get the seals and mirror bumpers replaced two years ago after 25 years of service so maybe.....:)
Forum: Photographic Equipment for Sale 04-29-2017, 07:23 PM  
For Sale: macros! 50, 90, 100, 105... Pentax, Takumar, Bokina, Tamron, Lester A Dine, Vivitar
Posted By Odinz
Replies: 36
Views: 7,037
PM Sent
Forum: Pentax K-3 02-20-2017, 08:10 PM  
K3-II Severe Overexposure
Posted By Odinz
Replies: 10
Views: 1,152
Thanks! That worked for me, the A*600 is still off but only by about 1/4 of a stop and now in the underexposed direction through the viewvinder. I tried several other lenses and now the exposure is the same in both live view and through the viewfinder.
Forum: Pentax K-3 02-20-2017, 09:57 AM  
K3-II Severe Overexposure
Posted By Odinz
Replies: 10
Views: 1,152
Odd, the same thing happened to me just yesterday with my K3.

I was shooting birds using my A* 600 lens using a tripod and things were exposing just fine. I switched over to live view to see if I could increase the number of 'keepers' slightly, and again exposure was just fine but the light was such that the screen was difficult to see so after a half dozen shots or so I switched back over to the viewfinder (which I prefer anyway). When I did my shots started coming out over exposed by about 1 1/2 stops. I switched back and forth between live view and the viewfinder and the camera would expose just fine in live view but over expose without it. I tried removing the lens, putting on the 1.4X, etc but nothing helped and I didn't have another lens with me at the time to try. I ended up having to dial in exposure compensation for the rest of the afternoon.
Forum: Monthly Photo Contests 01-30-2017, 10:23 PM  
Sunset on the Dunes
Posted By Odinz
Replies: 1
Views: 210
Forum: Pentax Film SLR Discussion 01-05-2017, 07:44 PM  
Kodak Ektachrome 35mm is coming back
Posted By Odinz
Replies: 51
Views: 3,117
This is fantastic news! Thanks for posting, I really can't wait to get my hands on some rolls!
Forum: Pentax K-30 & K-50 09-23-2016, 09:00 AM  
I Need Help Getting Good Exposure on Backlit Birds
Posted By Odinz
Replies: 11
Views: 828
I always shoot in spot metering, but I find that exposure depends on how much that the bird fills the frame. If the bird fills most of the frame +1 or 0 if the bird only fills a small amount of the frame with most of the frame a light colored background +2. Of course it also depends on the color of the bird, darker bird I lean higher, light colored bird not so much. I always make sure that the rear display is set to show blown out highlights (especially with white birds) and I always shoot in RAW or RAW+ as the RAW file will give you a lot of latitude to recover details as long as the histogram isn't off the scale either to the left or right..
Forum: Sold Items 09-23-2016, 04:59 AM  
For Sale - Sold: Sigma 10mm f/2.8 EX DC HSM Fisheye Lens for Pentax Digital SLR Cameras
Posted By Odinz
Replies: 10
Views: 1,124
PM Sent
Forum: Pentax Film SLR Discussion 09-20-2016, 04:34 AM  
Data back for PZ-1P?
Posted By Odinz
Replies: 2
Views: 423
Back in the day I used to carry a notebook in my camera bag to record some very simple exposure data. Always date and lens and depending on what I shot the shutter and aperture. Negatives were always stored in archive file sheets with the note sheet attached. Today I still do the same thing but instead I just use a spreadsheet on my phone to keep track of the data.

The data back on the PZ-1 only records date and time. I'd have to check mine as I haven't used the data backs in quite a few years, but I know that the date range on my LX data back is limited and I don't believe it reaches today's date, the PZ-1 back may be the same.
Forum: Repairs and Warranty Service 09-19-2016, 10:45 AM  
Dead Pentax LX
Posted By Odinz
Replies: 7
Views: 765
Mine was doing something very similar, Eric had done a bumper/seal repair last year so I sent it back to him and told me that the circuit board inside the camera was faulty. Of course these are no longer available from Ricoh. To make matters worse Pentax had used three different boards during the production run which aren't interchangeable, so just buying an old donor LX doesn't guarantee that you'll have a board that matches your camera. Apparently the only way to tell which board is in which camera is to open them up and check, I got lucky and had another one that matched.

Did you send it to Eric for the estimate? Usually he includes in the estimate what he is going to repair, for reference the bumpers and seals are about a $200+ repair.
Forum: Pentax SLR Lens Discussion 09-10-2016, 09:44 AM  
Butchering Russian lenses :(
Posted By Odinz
Replies: 11
Views: 857
He also modifies them to produce oval bokeh as well......
Forum: Pentax SLR Lens Discussion 09-10-2016, 09:29 AM  
Pentax A* 600 F5.6 Loose Barrel
Posted By Odinz
Replies: 5
Views: 600
Thanks for the tip, I'll take a look at the "upsizing" ring this evening and see what I find.
Forum: Pentax SLR Lens Discussion 09-10-2016, 08:29 AM  
Pentax A* 600 F5.6 Loose Barrel
Posted By Odinz
Replies: 5
Views: 600
Pål,

I don't know why I didn't see your post until after I posted my follow up, but you are absolutely right, it appears that loose screws in the barrel forward of the focus ring is my problem as well. The lens 'sags' a slight bit at that point when on a tripod, no doubt from the weight of the forward glass pulling down on the barrel all of these years. Not sure I want to take this lens apart myself, so it looks like I might just have to send this one into the shop for a tightening.

Thanks,
Steve
Forum: Pentax K-1 09-08-2016, 06:29 PM  
Is my K-1 wasted on my legacy glass?
Posted By Odinz
Replies: 25
Views: 3,313
We have a tendency today to judge a good lens by not only it's sharpness but by how sharp it is across the entire frame, but really it depends on what you'll be shooting. If you're shooting architecture, scenic landscapes or macros of a postage stamp collection, then edge to edge sharpness becomes more important. If your shooting portraits or shots isolating you subject then edge sharpness has no bearing at all. Up until a few years ago you could buy lenses that were purposefully 'soft' that you could vary the blur with them for effect, Lens baby does something similar today. Some types of lenses have defects that produce images that many people find appealing, such as the rendering of Helios lenses or even the doughnut bokeh of mirror lenses. Most lenses (and I'm not saying "all" as I do own some lenses that aren't) are acceptably sharp in the center for personal everyday prints of 5x7 or smaller or really anything short of pixel peeping, large scale printing or some publications. As everyone has said try what you have first, you may just find that the lenses you have now are good enough for your needs at the moment, you can always add / replace lenses in the future.
Forum: Pentax SLR Lens Discussion 09-08-2016, 05:52 PM  
Pentax A* 600 F5.6 Loose Barrel
Posted By Odinz
Replies: 5
Views: 600
Looked at the lens a bit more this evening and I noticed that just the act of attaching my Manfrotto monopod by screwing it directly into the lens foot tightened the lens right up, no barrel wobble at all and silky smooth focus just like always. I can't see how that would have any effect on barrel wobble since the tripod collar is free moving, unless the screw was exerting pressure against the barrel somehow. So I tried screwing a couple of different quick release plates into the lens but none of them had any effect on the barrel wobble. Hmmm.....I'm beginning to wonder now that if I did somehow figure out how to tighten the lens barrel when the lens is unloaded that it might be too tight to focus with a camera and monopod attached.
Forum: Pentax SLR Lens Discussion 09-07-2016, 07:12 PM  
Pentax A* 600 F5.6 Loose Barrel
Posted By Odinz
Replies: 5
Views: 600
I had a question concerning this lens that I hadn't noticed until earlier this week that maybe someone can verify for me.

When taking the lens out of the case I noticed that the barrel seemed to be a bit loose, nothing too drastic, and it does seem to vary day to day. Holding the lens at the point on the barrel where the filter holder is and at the point of the white part of the barrel just past the focus ring (the areas shown with the red arrows in the photo) There is a slight play both side to side and front to back, it's small, less than 1mm I would guess. It makes a bit of a clicking sound, which is really how I first noticed that it is moving.



Once I attach a camera to the lens or mount it to a tripod / monopod the lens seems to tighten up and the movement is much less noticeable if even at all, (probably why I've never noticed it) so possibly the gravitational weight of the camera on the lens tube? Maybe it's the outside temps, I don't know. Focusing is even smoother with a camera attached so maybe it's by design. I checked all visible screws for tightness (mounting bracket, lens mount) but all were snug. I have worked on and cleaned numerous fixed focal length lenses over the years, and I was going to see if there was a way to tighten things up a bit, but as I've never worked on this lens I'm a bit hesitant. Before I dig into this, I want to make sure I actually even have a problem in the first place.

I was wondering if any of you who have this lens experience the same thing, and if not is there anyone out there who may have worked on this lens before that may be able to provide some insight.

It doesn't seem to affect the photo quality of the images, they are just as sharp as always, so I'm not too concerned, but if it's the beginning of an issue I'd rather take care of it sooner than later.

Steve
Forum: Pentax Forums Giveaways 09-07-2016, 04:14 AM  
PF 10th Anniversary - Pentax K-50 1-Day Giveaway! - Entries closed, winner announced.
Posted By Odinz
Replies: 1,825
Views: 49,852
The red will really stand out in a crowd!
Forum: Pentax SLR Lens Discussion 07-19-2016, 04:46 AM  
Is Sigma 8-16mm F4.5-5.6 DC HSM for Pentax discontinued?
Posted By Odinz
Replies: 9
Views: 921
Because they only switch production to the K mount when they get enough requests to make it financially feasible, it is often out of stock and appears to be discontinued.
On the Sigma website you can place an order for the Pentax mount, if it is currently out of production they will let you go on a wait list and they will notify you when the lens is back in stock so that you can complete the purchase. A couple of years ago I did just that, shorty after they notified me the lens was available (about 6 months later) it also showed up on Adorama and B&H as 'In stock', I just ended up buying from one of them instead.
Forum: Pentax SLR Lens Discussion 07-11-2016, 10:23 AM  
Bojidar Dimitrov is looking for someone to take over his page
Posted By Odinz
Replies: 17
Views: 1,706
I don't normally go to the welcome page of Bojidar Dimitrov's website, I usually go straight to the lens section, but for some reason today I did.

Pentax K-Mount Lenses and Lens Accessories

He has the following message listed:


"Looking for the biggest Pentax fan out there

Dear Pentax friends, it's difficult to write these words, but the time has come to "pass the relay" to someone else, someone with enough time and motivation to take over this web page and bring it back to glory. If you feel like this is you, or someone you know, get in touch with me. Let me know why you think you will do a great job with the KMP and point out 1-2 web-based projects which you've conceived and implemented."


I haven't "conceived and implemented" any web-based projects, maybe someone on this board might be able to "pick up the relay". It would be nice to see this page continue on.
Forum: Film Processing, Scanning, and Darkroom 07-03-2016, 07:43 AM  
"END OF AN ERA" - Famous Photographer Trashes 25 Years Of Old Film Images!
Posted By Odinz
Replies: 32
Views: 2,968
I don't think I could do it.

I have kept many shots over the years that might not have much artistic merit, but they may contain the only image I have of a certain person, object or event. On more than one occasion I've looked through my "reject files" and found a photo of a long lost friend, or was able to reconstruct a damaged or missing object by looking through old shots. I only shoot film occasionally now (which I still enjoy), as digital is much more convenient, but as I tell my wife, I've kept these things all of these years (film files, darkroom equipment, slide projectors, light table, WAY too much photographic equipment) we obviously don't need the space they are talking up, so why get rid of them now. Besides, everyone is always saying we need to leave something for the next generation, so here you go.
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