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Forum: Troubleshooting and Beginner Help 1 Day Ago  
M42 Enlarger Lens adaptaer help?
Posted By pentaxus
Replies: 10
Views: 287
M42 is unusual for an enlarging lens. I suspect the most common is Leica 39mm. Are you going to use this on an enlarger? On an enlarger the focusing system is part the enlarger. If you are wanting to use the lens for taking pictures you will need to have a focusing bellows of the type commonly used for close focusing. No adapter changes the focal length of the lens. I have used a 100mm enlarging lens for close-up pictures with my Pentax bellows II unit.
Forum: Pentax Medium Format 2 Days Ago  
Pentax 6x7 lenses on 645Z?
Posted By pentaxus
Replies: 6
Views: 292
Which 75mm?
Forum: Pentax Film SLR Discussion 3 Days Ago  
Interesting item...M42 instant film camera
Posted By pentaxus
Replies: 5
Views: 426
Making the lens cover a bigger format reduces light. There was an adapter for Nikon F cameras called the "speed magny" that made regular 35mm format lenses cover 3 1/4 X 4 1/4 polaroid film. It was huge and there was a 5 f/stop light loss.
Forum: Pentax Film SLR Discussion 4 Days Ago  
Auto-Takumar 55mm f/2.2
Posted By pentaxus
Replies: 10
Views: 358
It has a semi-automatic diaphragm. You have to manually open it up but it closes down automatically when you take the picture.
Forum: Pentax Medium Format 02-14-2020, 12:48 PM  
Another 67 TTL Meter Chain Thread
Posted By pentaxus
Replies: 6
Views: 356
67II bodies don't have the issue. 67 bodies use the "same" meter system as 6X7 cameras. Same is in quotation marks because early prisms use cds cells and later ones use silicon blue cells. I don't know how to tell them apart except by disassembly.
Forum: General Photography 02-06-2020, 12:57 PM  
when did Pentax stop putting a " passed " sticker on lens and camera bodies
Posted By pentaxus
Replies: 36
Views: 1,112
Cameras were not individually inspected. The manufacturer got rolls of stickers to put on the product after JCII checked one out. I suspect the stickers went into disuse when Canon and Pentax started having things made outside Japan.
Forum: Troubleshooting and Beginner Help 02-06-2020, 12:51 PM  
Spotmatic just got serviced, but mostly unexposed rolls of film
Posted By pentaxus
Replies: 10
Views: 538
If high shutter speeds didn't come out and slower speeds did, I suspect it needs re-adjustment of the shutter curtain travel times. Sometimes cameras that have not been used for a while take a bit of use before that stabilizes. Anyway, you need to send it back to get re-done.
Forum: Pentax Film SLR Discussion 01-31-2020, 07:53 AM  
question about leather case for a ME Super
Posted By pentaxus
Replies: 20
Views: 632
The case has to be removed to load film. Manufacturers called them eveready cases. Many people called them never ready cases. I used a small camera bag on those days.
Forum: Pentax DSLR Discussion 01-28-2020, 08:53 AM  
Do not know what to think on this one. Quite disturbing RE; Ricoh
Posted By pentaxus
Replies: 57
Views: 3,525
B&h photovideo has the screen in stock.
Forum: Pentax SLR Lens Discussion 01-27-2020, 11:16 AM  
No connection Aperture ring and blades
Posted By pentaxus
Replies: 7
Views: 464
Or the blades are greasy and stuck open.
Forum: Troubleshooting and Beginner Help 01-25-2020, 10:44 PM  
Super Zoom 105: shutter issues? Auto winding?
Posted By pentaxus
Replies: 1
Views: 252
Zoom point and shoot cameras have a ribbon flex that goes between the shutter and the main circuit board. When the lens zooms the flex circuit folds back on itself. After years of use microfractures get generated and the circuitry can't talk back and forth. There is no repair other than replacing parts that are no longer are available.
Forum: Troubleshooting and Beginner Help 01-24-2020, 11:56 AM  
Sticky / Slow Aperture blades in K series
Posted By pentaxus
Replies: 7
Views: 430
In hot weather the focusing helix grease can evaporate and condense on the diaphragm blades in a film so thin as to be invisible. Cold weather lets you know it is there.
Forum: Repairs and Warranty Service 01-21-2020, 10:50 AM  
K-1II hotshoe mount broken
Posted By pentaxus
Replies: 22
Views: 717
Wow. You need a new top cover. People talk as if metal tops don't fail. They can and do. I have seen some of Nikon's nice cast top covers cracked, but it is tough to know how much force was involved. I have been surprised by the durability of fiberglass filled polycarbonate parts. It would be nice to do some accurate testing. Anyone want to donate their camera?
Forum: Pentax Film SLR Discussion 01-16-2020, 12:42 PM  
New Purchase: K1000 and accesories
Posted By pentaxus
Replies: 9
Views: 1,099
The big hood is for a 135mm f/2.5 or 200mm f/4.
Forum: Pentax Camera and Field Accessories 01-16-2020, 12:40 PM  
Lens hood for 28mm f/3.5 (K version)
Posted By pentaxus
Replies: 5
Views: 385
The original is a clip on rectangular plastic hood. I bet a 52mm "tulip" lens hood will work. sensei 52mm screw-on tulip lens hood | B&H Photo Video
Forum: General Photography 01-15-2020, 12:41 PM  
Speaking of New "Camera" technology.
Posted By pentaxus
Replies: 12
Views: 808
A friend of mine was working at a minilab in Santa Cruz, CA. A woman brought her camera in to get the film unloaded and developed. He opened the back and saw that there was no film. He said " that's unfortunate". She said " if I tell you what I took pictures of can you print them anyway?" ( This is a true story ) So she was just a little too early with her request.
Forum: Pentax Film SLR Discussion 01-07-2020, 12:54 PM  
Fixing the frame counter screw of a K-1000
Posted By pentaxus
Replies: 4
Views: 328
A junk SP500 or SP1000 is cheaper and the part is the same. I would suggest a Spotmatic but you might get a 231 Spotmatic instead of the 23102 version.
Forum: Pentax Film SLR Discussion 01-02-2020, 01:26 PM  
Pentax P50 back to life
Posted By pentaxus
Replies: 5
Views: 378
The P50 chassis is pretty much a ME metal chassis with plastic covers.
Forum: Pentax Film SLR Discussion 01-02-2020, 01:23 PM  
Off-the-film metering after the Pentax LX
Posted By pentaxus
Replies: 11
Views: 534
The LX was the only Pentax to have that feature. It is tough to know why. Was Pentax paying Olympus to use the patent? Every feature has a cost. Did eliminating that feature make Super Program to P series more affordable even if they weren't paying to use a patent? I like the feature but rarely use it and do use shutter priority and sometimes even program mode.
Forum: Troubleshooting and Beginner Help 01-02-2020, 08:57 AM  
Soldering required on Asahi KX battery to wire
Posted By pentaxus
Replies: 11
Views: 492
The KX uses a battery holder on the cap for its two batteries, like the Minolta. The tough part is getting solder to stick on the stainless steel. Caig no clean soldering flux is supposed to work but i haven't tried it.
Forum: Pentax SLR Lens Discussion 12-30-2019, 08:16 AM  
A135/2.8, focus ring become loose
Posted By pentaxus
Replies: 7
Views: 350
Commonly, Pentax MF lenses require you to remove the name ring, exposing three screws that hold the filter ring on. After removing the filter ring you can see the three screws that hold the focusing ring onto the focusing helix. Tighten one screw, carefully focus to infinity, loosen the screw and align the focusing ring. then tighten all of the screws. You may need to try to get infinity focus correct more than once.
Forum: Pentax SLR Lens Discussion 12-29-2019, 11:54 PM  
I need a Pentax SMC FA 50mm 1.4 exploded assembly diagram/image
Posted By pentaxus
Replies: 4
Views: 718
If it fits neatly behind the front lens group I would guess it is a shim that goes there.
Forum: Troubleshooting and Beginner Help 12-29-2019, 11:50 PM  
Pentax Spotmatic Stuck Mirror: But wait, it's different
Posted By pentaxus
Replies: 4
Views: 326
You pushing the shutter button releases the mirror. When the mirror gets far enough up it fires the shutter. It sounds like the mirror box levers could need to be lubricated. That requires removal of the front panel. If you decide to remove the front panel be careful to keep track of where the shims go that are under where the front panel screws go in. If you take the top off you need to know that the screw holding the counter disc is left hand thread as is the ring holding the counter cap holder in place.
Forum: General Photography 12-26-2019, 01:17 PM  
Do ccd sensors have better color than cmos?
Posted By pentaxus
Replies: 23
Views: 873
I like the colors on my K-50 and K-10 better than the colors on my K-10 or istD, but I don't like the factory preset colors on the k-50/k-3 either. It is personal preference.
Forum: Pentax Film SLR Discussion 12-19-2019, 12:58 PM  
Restoring K1000... #5
Posted By pentaxus
Replies: 7
Views: 426
Restoring K1000s can be fun.
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