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Forum: Troubleshooting and Beginner Help
03-22-2024, 12:03 AM
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Thanks for this information, Tim.
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Forum: Troubleshooting and Beginner Help
03-17-2024, 02:58 PM
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Hi. May I ask where you ordered the adapter rings?
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Forum: Film SLRs and Compact Film Cameras
03-16-2024, 12:03 AM
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Thank you for this. It confirms what I have been told elsewhere.
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Forum: Film SLRs and Compact Film Cameras
03-14-2024, 01:20 PM
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Do you have any idea what the "partial disassembly" to change the mirror damper involves?
---------- Post added 03-14-24 at 01:23 PM ----------
Does anybody have any tips, advice or guidance for replacing the mirror bumper foams on the SV? It's been suggested to me that I need to remove the front plate, then remove the light baffle, to get good access to the area where the foam is.
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Forum: Pentax SLR Lens Discussion
03-06-2023, 05:42 AM
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I put my lens on a K-70 body and it seems to be okay. It fits snugly, and allows correct exposure. I'll leave it on this body for now, rather than taking it on and off regularly to use other lenses.
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Forum: Pentax SLR Lens Discussion
03-06-2023, 12:41 AM
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Thanks for this, kypfer. This is my fear: removing the mount will lead to springs flying out and connecting cables which need de-soldering then re-soldering. I have repaired my damaged mount with non-foaming clear gorilla glue. I've yet to see if it holds up when on a camera. I don't think I'll try to swap mounts.
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Forum: Pentax SLR Lens Discussion
03-05-2023, 02:46 PM
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Hello. I have DAL 18-55 with a damaged mount and a DAL 55-300 with a sound mount but internal damage. Can I just use the 55-300 mount on the 18-55? Is it just a matter of removing screws? Are there springs or other surprises inside? Thanks for any tips.
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Forum: Film SLRs and Compact Film Cameras
02-25-2022, 03:27 PM
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I'm trying to post a picture. This looks like brass to me, but I have been told that it is "metalised plastic". Does anybody have a definitive answer?
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Forum: Film SLRs and Compact Film Cameras
02-25-2022, 03:23 PM
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Does anybody know if the Super A has a metal body.
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Forum: Pentax K-S1 & K-S2
02-19-2022, 07:03 AM
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I bought another white solenoid. I realised that it was soldering with the solenoid in situ that I was struggling with. The ebay seller from whom I bought the solenoids soldered short wires to the second, so all I had to do was solder wires together and protect the connections with insulation tape. I now have the camera back together and exposing correctly. Thanks for this tutorial and guidance, which was very helpful.
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Forum: Site Suggestions and Help
02-14-2022, 12:58 AM
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Forum: Pentax K-S1 & K-S2
02-11-2022, 03:54 AM
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I may look for another white solenoid and if one comes up on ebay at a reasonable price, buy it. While I look I'll practise my soldering, and put my K70 parts in a box to protect them from dust. Does it sound and look as if the one in the photo is beyond recovery?
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Forum: Pentax K-S1 & K-S2
02-10-2022, 09:37 AM
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I've tried using the multimeter I have. It shows 10.0 when the terminals are not touching anything. When I touch one terminal to the tip on one side of my damaged white solenoid, and then touch the area near where the other tip was with the other terminal, the reading tends to stay at 10.0 but from time to time briefly moves to 30.0 or even 50. When I do the same with the faulty green solenoid the same thing happens, and occasionally the reading counts up from 0.1 to 0.3.
I'm not sure what this reveals. Maybe the multimeter is faulty. Maybe both solenoids are damaged.
I'm going to try to post a better picture of the damaged white solenoid. I suspect it is beyond usefulness.
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Forum: Pentax K-S1 & K-S2
02-10-2022, 02:33 AM
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I realised that I have a multimeter I've never used, so I'll have a look at the instructions.
Unfortunately, both the side pin and the top pin have disappeared from the damaged side of my white solenoid. I'll see if I can get an impedance reading from the metal around where they were, or from the end of the copper wire if I can locate it, then try soldering to that point.
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Forum: Pentax K-S1 & K-S2
02-10-2022, 01:18 AM
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I'll see what I can do. Thanks.
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Forum: Pentax K-S1 & K-S2
02-09-2022, 09:43 AM
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Thanks for the prompt reply and clear advice. I'm going to get some thin tin/lead solder with rosin and some colophonium flux, practise my soldering, then put the faulty green solenoid back in the camera, unless I begin to feel confident and can get a reasonably priced white one.
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Forum: Pentax K-S1 & K-S2
02-09-2022, 07:15 AM
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It looks like the solder you recommend has a rosin core. Doesn't that mean it contains flux? I have seen similar in the UK and can get it here, but you say "solder without flux", so I'm confused.
I don't have the skill or equipment to measure impedance, so my choice lies in getting another white solenoid, or re-installing the faulty green one. I need to feel more confident of my soldering, and am wary of spending any more money on what has turned out to be an extremely stressful project, so will probably practise my soldering and put the old one back and use the K70 with manual lenses, if I get it back together again.
---------- Post added 02-09-22 at 08:02 AM ----------
One thing I haven't seen any comment on, but think another member asked, too: if manual focus lenses will work on a DSLR with a faulty solenoid, will they work on a DSLR with NO solenoid, ie with the faulty solenoid removed and not replaced? If so, I'll just put my K70 back together again without a solenoid, and use it with my "A" lenses.
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Forum: Pentax K-S1 & K-S2
02-09-2022, 03:06 AM
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In your link about soldering you mention using colophonium as a flux. I have flux which I use with copper plumbing pipes. Is a small touch of this on the pin or the wire safe, or do I need to buy some flux designed specifically for electronic components?
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Forum: Pentax K-S1 & K-S2
02-09-2022, 01:46 AM
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I think I kept my soldering iron on the tip of the solenoid for too long. It is a basic 25w iron with pencil tip. Since damaging this solenoid I have been practising my technique. Since it is very difficult to hold the wire in place, hold the iron to the component, and hold the solder to the tip of the iron, the secret seems to be to ensure the tip of the iron has solder on it, hold the wire in place with tweezers, then just touch the tinned iron to the components for only a second or so. I'm trying to improve my skills. I will either buy another solenoid and have another go, or re-install the faulty solenoid and just use manual lenses. My message to those planning to have a go at this project is: unless you are very confident, practise your soldering skills on the finest bits of wire you can find before starting. It is really easy to goof it up.
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Forum: Pentax K-S1 & K-S2
02-08-2022, 03:48 AM
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Forum: Pentax K-S1 & K-S2
02-08-2022, 03:35 AM
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Presumably this solenoid is damaged beyond use. (Again, no option to post photo or manage attachments. I'll post the pic when I work out how to do it.) Is there any point in trying to solder to the metal plate on the same side where the pin has just disappeared, the bottom side in the photo?
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Forum: Pentax K-S1 & K-S2
02-07-2022, 08:28 PM
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Here's a photo, I hope.
---------- Post added 02-07-22 at 08:30 PM ----------
I've managed to do it. Thank you.
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Forum: Pentax K-S1 & K-S2
02-07-2022, 03:24 PM
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PS Can anybody explain to me how to post pictures on this site?
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Forum: Site Suggestions and Help
02-07-2022, 03:20 PM
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On nearly every other online site, social media or internet page, I post a picture simply by selecting it from my device. Here, I have no idea what to do. I think you ask for a URL. Where do I find that? I posted the string of numbers attached to a picture but that didn't work.
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Forum: Pentax K-S1 & K-S2
02-07-2022, 12:23 PM
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I'm struggling with posting pictures. It doesn't seem straightforward. Thanks for the suggestion. I'll have a look.
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