Forgot Password
Pentax Camera Forums Home
 

Showing results 1 to 25 of 300 Search:
Forum: Pentax Medium Format 10-16-2017, 12:03 PM  
HELP Pentax 645 winding issue
Posted By MysteryOnion
Replies: 11
Views: 524
Not a 645 owner and just spit balling here, but on 6x7s there is a regulated mechanism that counts out the length of the necessary film to equal a frame. The gearing alone can't be timed to pay out the length based on the position of the spool to the film role, so the spool might synchronized with roller to help keep constant measure the amount of film passing. On the 6x7 the "counting roller" and the winding mechanism has a spring tension clutch to allow for slippage as a cam engages and to regulate each crank until enough film is moved into position. I would say that the film holder must not be resetting something to a full open state after it is removed from the camera? So it sounds like the brakes are already engaged from frame one on. Don't have a diagram of holder or camera, but if someone does, could you verify this synchronization? Could be just a stuck arm or reset lever?
Forum: Pentax Film SLR Discussion 10-16-2017, 11:40 AM  
K-1000 X Flash Terminal Cover
Posted By MysteryOnion
Replies: 4
Views: 329
Thought they still made them..?

Found only on the bay now.... searching under "flash sync socket caps"

10 PC flash sync socket caps fit Canon A series, Pentax | eBay
Forum: Pentax SLR Lens Discussion 10-11-2017, 09:15 AM  
Please help..! I got scammed, need to fix the lens...
Posted By MysteryOnion
Replies: 21
Views: 1,552
If you are good at looking at the images via a Photoshop or GIMP or your favorite flavor... toy with the levels and curves to look deeper into the provided images.
Especially if the images show signs of painting or covering up of details. If the image is overcooked or showing odd "jaggies", that is a walk away.
If you can access the sellers posted images still, give it a try. How much can you see or did the aperture get stopped down to f22 to prevent you from noticing?
Forum: Pentax SLR Lens Discussion 10-11-2017, 05:15 AM  
Please help..! I got scammed, need to fix the lens...
Posted By MysteryOnion
Replies: 21
Views: 1,552
That is a nasty specimen...yikes.

As all have already said...Chase seller first.

Depending on conditions, the fungus might have done serious damage or hardly any.
I can't tell by pictures.
I've gone after many fungus lenses...on purpose...and only two out of dozens (44-48 lenses...lost count) were beyond cleaning.
Forum: Pentax SLR Lens Discussion 10-11-2017, 05:14 AM  
Please help..! I got scammed, need to fix the lens...
Posted By MysteryOnion
Replies: 21
Views: 1,552
That is a nasty specimen...yikes.

As all have already said...Chase seller first.

Depending on conditions, the fungus might have done serious damage or hardly any.
I can't tell by pictures.
I've gone after many fungus lenses...on purpose...and only two out of dozens (44-48 lenses...lost count) were beyond cleaning.
Forum: Pentax Medium Format 10-04-2017, 06:09 AM  
Pentax 6x7 Shutter Curtain not opening.
Posted By MysteryOnion
Replies: 14
Views: 535
Varta...nice. Hard to find in the Northeast for some reason? In past post about power issues, it is worth noting that the age and quality of the battery can be the cause. I've been to some stores were a brand new in pack was clearly bloated and dead. The expiration date was still good too.

It is a simple paper and metal paper rivet holder I built and have left instructions on how here and there in these formums. Simply a pair of CR1/3n and a spacer. I get about 30 rolls and if the voltage goes to below 5.1v I'll change it out. Carry a spare set always.
Forum: Pentax Medium Format 10-03-2017, 07:09 AM  
Pentax 6x7 Shutter Curtain not opening.
Posted By MysteryOnion
Replies: 14
Views: 535
High drain...Just ruling out high drain.
I've stopped using alkaline button cells... you may have good stable versions, but I've had a few gloat up and pop or mysteriously drain down to dead quickly as if not fresh.
This is with many claimed Duracell or Rayovac and etc. Off brands and odd-ball bulk pack from China I stay away from.
I've had good results and do like stacking Silver-Oxides or Lithiums to make my own 6v... more stable discharge...my test batteries.
Forum: Pentax Medium Format 10-02-2017, 09:16 AM  
Pentax 6x7 Shutter Curtain not opening.
Posted By MysteryOnion
Replies: 14
Views: 535
Assuming the battery is new and not an alkaline type...
Did you try running the speed dial around and around about four revolutions and then try all speeds from B and 1 sec. all the way to 1000?
If the contacts under are dirty/oxidized, they will not send power to the time board and you will get an instantaneous drop of the second curtain upon pressing the shutter release.
The symptoms sound like a lack of power to the timing circuit.
Forum: Pentax Medium Format 09-22-2017, 03:51 AM  
Pentax 6x7 W/MLU Questions
Posted By MysteryOnion
Replies: 2
Views: 388
Could you provide a snap shot of this?
Forum: Repairs and Warranty Service 09-12-2017, 05:32 AM  
Pentax LX shutter speed display issue
Posted By MysteryOnion
Replies: 5
Views: 402
Certainly welcome, good luck.
Forum: Repairs and Warranty Service 09-11-2017, 04:47 AM  
Pentax LX shutter speed display issue
Posted By MysteryOnion
Replies: 5
Views: 402
I have one LX that I acquired over a year ago that someone opened and didn't know what they were getting into. The blue indicator sync gear must be locked prior to removing the shutter dial assembly and to get to bits around the viewfinder. In my example, the person must have pulled the part off and dislodged some part of the tension on the cord. Then assembled the system sort of backwards and the blue indicator worked way off sync as well as come up short due to a knot tied to repair. So I was wondering if the brake is partially engaged on the gear causing skipping or the spring tension is wrong due to the pulley being set up wrong. That's my best guess from way over here in Boston. If you are looking to DIY it, I would suggest looking at the sync gear at the shutter dial or check the side next to the PC socket to what the spring is doing.
Forum: Repairs and Warranty Service 09-10-2017, 04:44 PM  
Pentax LX shutter speed display issue
Posted By MysteryOnion
Replies: 5
Views: 402
That certainly looks like the cord has jumped the pulley. Has it been serviced or tinkered with recently?
Forum: Troubleshooting and Beginner Help 08-15-2017, 10:57 PM  
Pentax 6x7 MLU question Film counter Dry Fire
Posted By MysteryOnion
Replies: 2
Views: 305
If the counter is frozen?
It sounds like the tension to the dial was not properly set prior to installing the counter dial.
You should contact that repair guy about it.
If the transport is in gear while the door is open, then the transport sync is not correct and could be an issue.
Forum: Pentax Film SLR Discussion 08-04-2017, 12:26 PM  
Pentax Auto 110 problem
Posted By MysteryOnion
Replies: 4
Views: 482
Sounds like not enough power it detected by the... name might be... exposure solution circuit? So the meter is sending a range of voltage...just as an example .7 to 2.3 volts to the timer circuit. The correct reading might be 1.6, but the connection is dirty and it finds only .9 and thinks that it is dark. This could be a corroded connection?
Forum: Pentax Film SLR Discussion 08-04-2017, 07:42 AM  
Pentax Auto 110 problem
Posted By MysteryOnion
Replies: 4
Views: 482
If it is firing with no batteries, then that is odd...? You should hear the click, but the release should relies on separate part to capture and hold for the magnet to time the release. If you are looking to get inside, look for the rails and the armature that rides on it. It sound like an issue there. If the rails are clear, look at the small tab along the mirror cage. If it is clogged...

A110mirrorlever by Warren Yee, on Flickr

...then the shutter does not come to rest and the system does not reset...forever repeating the firing sequence.


Below is the other actuator that might be having problems.

A110cockinglever by Warren Yee, on Flickr
Forum: Pentax SLR Lens Discussion 07-26-2017, 05:01 PM  
Asahi Pentax-M 50mm f1.4 Lens Haze with Balsam Separation Suspected, Repairing...
Posted By MysteryOnion
Replies: 11
Views: 829
Light reflecting would be a good first check.
The metallic coat should look continuous no spots.
Also, see how lens cleaner effects it.
Will lines and specks come off?
"...hot air gun..." You keep heat even across all surfaces, if you can't it keep even in all directions, the element may start to fracture if the temps are too extreme.
I've been able to do the boiling technique on a M40/2.8... yes, less glass to cook.
That last group in the tube should be a carrier sleeve...?
Forum: Repairs and Warranty Service 07-24-2017, 11:57 AM  
Pentax K20D Parts
Posted By MysteryOnion
Replies: 2
Views: 435
It may not pan out, but check out uscamera.com
Couldn't hurt to ask if they have the part you need.
Currently, they publish that they have K20D LCD window parts.
Forum: Pentax SLR Lens Discussion 07-24-2017, 11:35 AM  
Asahi Pentax-M 50mm f1.4 Lens Haze with Balsam Separation Suspected, Repairing...
Posted By MysteryOnion
Replies: 11
Views: 829
I hope the coating was not eaten away... that looks very bad.

Its been a long time since I opened my M50/1.4, but the last group should be in a holder that is threaded into the aperture assembly... outer ring hook spanner and sleeve?

You considered boiling the group apart?
Starting with a cold pan and acclimate the group to the water then slowly raise the temp. The groups should sit on a cloth or thick towel to no overheat. The glue may soften at 184 degrees, but you should have a pair of tongs that can grip the elements and exert some torque. Do not lift out of the hot water during this heating process or the temperature difference could shatter the elements. Patience is needed, this may not work the first time and require multiple sessions to get the glue to fail.
Forum: Troubleshooting and Beginner Help 07-23-2017, 01:32 PM  
Battery grip stuck
Posted By MysteryOnion
Replies: 9
Views: 525
Hey fellow K3+grip users.
If you are all-weather shooting, don't forget to separate the grip and body to dry off.
The alignment lugs can puff up with corrosion and make things difficult.
I dab down the lugs with a film of silicone grease.
Forum: Troubleshooting and Beginner Help 07-23-2017, 01:25 PM  
UC-1 / Espio Mini issue ! "E" error Please help
Posted By MysteryOnion
Replies: 2
Views: 459
Could be a circuit board issue or the sliding door is loose. My UC-1 has a fine crack in the board that put power in the main circuit board, but double check that the battery contacts are clean or give them an extra puffing.
Forum: Repairs and Warranty Service 07-21-2017, 10:25 AM  
Rikenon P 50mm 1:1.7 disasembly gone wrong
Posted By MysteryOnion
Replies: 5
Views: 551
I see one blade looks buckled?
If so, you may want to flatten it or it will interfere with the functioning.

If you have blue or white painter's tape, it can help with the reassembly of the blades.
If the surface is still very oily, then never mind.
Forum: Pentax Medium Format 07-19-2017, 08:45 AM  
Pentax 6x7 cannot unmount the lens.
Posted By MysteryOnion
Replies: 7
Views: 580
That might be your best move.
If it is damaged or rusted in B33 to B37 would be an easy thing, but the parts circled and B34-01 or B53 is a walk away unless you can find replacements.

Hope it works out well for you in the end...good luck.
Forum: Pentax Medium Format 07-18-2017, 05:14 PM  
Pentax 6x7 cannot unmount the lens.
Posted By MysteryOnion
Replies: 7
Views: 580
If you can not take this back to the seller, you may need to contact a camera tech.

If you are not looking to send it off to a camera tech, but dyi it... It is not impossible to check under the mount.

Note!!!!

... you will have to remove the leatherette lobes found at each corner of the mount face.

IMGP1825 by Warren Yee, on Flickr

it is best to use JIS type drivers as to not damage the screw heads.
Four screws holds down the mount.
Be very-very-very careful of the shims under each screw placement...don't mix them up or loose them inside.

IMGP1827 by Warren Yee, on Flickr

Sorry for the late evening lack of care in my close-up shots.

If this makes you nervous, don't try it without practice on a cheap or broken camera. Acquire a manual for a better look at the setup...or send it to Eric or a camera tech who is familiar with 6X7 bodies.
Forum: Pentax Medium Format 07-18-2017, 10:14 AM  
Pentax 6x7 cannot unmount the lens.
Posted By MysteryOnion
Replies: 7
Views: 580
Something is loose or out of alignment...any lens damage? Does the focus action feel rough somewhere?

It is odd the power issue is connected to a mechanical issue via the lens?

I do hope we are not looking at a dropped camera problem.

If only the release is frozen, then the camera could be partially disassembled to pry the lever to open.
Forum: Pentax Medium Format 07-18-2017, 09:01 AM  
Pentax 6x7 cannot unmount the lens.
Posted By MysteryOnion
Replies: 7
Views: 580
Seller shipped it with the lens attached?
Doe the lens shift slightly in the mount or frozen solid?

Oh... so we are on the same page... the release lever is on the same side as where you'll find the flash sockets.
Search took 0.02 seconds | Showing results 1 to 25 of 300

 
Forum Jump


All times are GMT -7. The time now is 12:41 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top