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Forum: Troubleshooting and Beginner Help 06-06-2018, 05:04 AM  
Pentax K-1000 build-in lightmeter trouble
Posted By MysteryOnion
Replies: 6
Views: 486
Already good advice above...adding some other factors

Test:
Also set the camera down on a table edge facing a bright scene.
While looking through the eyepiece, test the ASA setting by lifting and spinning from one extreme to the other.
Also repeat for the shutter speeds.
There is a chance you may see the meter intermittently jump to life.
This is to rule out the problem is in the potentiometer brushes in the ASA board.


Also, could you share the overall condition of the K1000 body.

Dents ... any substantial deformation of the housing can short out the connections inside.

Fall damage... The meter has two snail coil springs that also are the electrical conductors for the meter and is easily damaged.

Age can be a factor. Humidity and heavy damp can effect the electrical contact...clean the contact with an eraser to be sure.

Which Era/Version...all metal or plastic shell... made in Japan or Hong Kong or China...?
The earliest versions may have foam that turned to a gooey mess and could cause problems. Although, foam tends to crumble from age.
Forum: Pentax Film SLR Discussion 05-10-2018, 03:57 AM  
Pentax S1a to Repair or Buy
Posted By MysteryOnion
Replies: 16
Views: 1,048
It may not seem important...
Are you the original owner?
I am wondering when the last time it was serviced?
General description sounds like dry grease issues and the return arm for the aperture actuator is not fully resetting.
If you are not sure if the camera was service...say around 1980-2010, then many gummed up or hardened lubricant issues are possible...repairable

If you had experienced a dead lock while advancing and the metallic pop and the suddenly the advance seemed fine, it is likely the reset cycle jumped out...you might try ebay.
Forum: Pentax Medium Format 03-12-2018, 06:04 AM  
P6x7 lenses - how 'snappy' do the aperture blades have to be?
Posted By MysteryOnion
Replies: 6
Views: 623
I've had a few sluggish apertures and I've tended to slide the lever to the "MAN" or manual position prior to making my shot.
Depending on reason for the oil, either someone oiled it up or it was due to age, the oil could badly coat the elements adjacent to the aperture.
If you see oil on the extended barrel, then it might be a good idea to store the lens front facing down to reduce future intrusion of oil.
It would be get to have it cleaned.
I too acquired a 135 with oil issues a few years ago and I would think it condition was due to the lens being stored in a very hot situation prior to my ownership.
The clues are the helical grease being very stiff and paste like consistency (more as a semi-dried paint) as well as oily conditions in all areas from body of the barrel to aperture cup/carrier.
It was a pain to clean it all out...major disassembly to reach all parts and not for novice tinkerers.
Forum: Repairs and Warranty Service 03-06-2018, 12:28 PM  
Pentax 67 frames overlapping
Posted By MysteryOnion
Replies: 1
Views: 391
Two possible common causes.

Supply side spool tight and not feeding film enough... some folks lube it to help it slip better or adjust tension. I've tried both and it depends.

Take-up side slipping too much and not enough tension to pull film out... in a few cases I've encountered, the clutch was greased.
The clutching action requires grip to the shift. I've been able to clean one such "over grease" condition and it worked better, as well as drop the tension on the other side slightly.
Normally 5-6mm is about right for spacing.
If the clutch spring is very weak or worn, it's not a an easy fix because a new part is needed.
Dropping too much tension from the supply side would produce issues with overall spacing of roll and my cause lock up problems with firing the shutter.
The take-up assembly would need to be removed and the cap screw removed to access the clutch spring.
Hope this helps a little.
Sorry, I don't have much more information. Been three years since I've worked with transport mechanism on 6x7/67 bodies.
Forum: Pentax Medium Format 02-14-2018, 01:06 PM  
Pentax 6x7
Posted By MysteryOnion
Replies: 11
Views: 810
As everyone is pointing out... So you threat the starting tab of the film into the empty spool...and then started to work the advance lever... and the film paper starts to wrap around the empty spool...you continue to advance until the arrow lines up with the "120" start mark...you then close the door and... nothing? The film won't move?
Forum: Pentax Medium Format 02-12-2018, 10:11 AM  
Pentax 6x7
Posted By MysteryOnion
Replies: 11
Views: 810
Is the counter at the start line or stuck at a number greater than zero?
Forum: Pentax Medium Format 01-30-2018, 12:52 PM  
Arsat 30mm fisheye loose mount
Posted By MysteryOnion
Replies: 7
Views: 666
When you set the lens to the minimum focus and look in and around the barrel... is there a suspicious set screw?
The original Kiev mount was a screw type and if the original lens is simply adapted, the thing may twist off.
However, a set screw is possible to prevent spinning of by accident and if you can't see it outside it may be inside.
The second stage cup portion of lenses that house the aperture levers and such are usually looseness by way of screws hidden under the aperture ring?
In your case, the aperture ring is held in by the rear mount cap and the adapter ring is on top of it.
Again, I'm guessing...thanks for posting the picture.
Forum: Pentax Medium Format 01-30-2018, 08:37 AM  
Arsat 30mm fisheye loose mount
Posted By MysteryOnion
Replies: 7
Views: 666
Not an owner of this lens, but a quick questions is... loose mount ring or the adapter barrel/spacer?
General suggestion for this is that if the Arsat was adapted for use other than the Kiev or Arsat, then the barrel/spacer is coming loose.
This might mean you will need the ring removed and tighten the spacer screws...maybe a dot of loc-tite as well and then reinstall the mount ring.
Maybe provide a picture of the gap and some folks might chime in with a more precise suggestion?
Forum: Troubleshooting and Beginner Help 01-25-2018, 06:56 AM  
Element group issue
Posted By MysteryOnion
Replies: 11
Views: 599
Rear flange cap... A form of thread locking compound. If you have a heat gun and set it to 200 degrees. A lens wrench is the easiest method to grip or otherwise rubber pads.
If heat is not working.
Chill the group in the fridge to about 38-40 degrees... then with heat gun and narrow nozzle heat the ring as rapidly as possible and then twist.
If with lock the inner is not expanded as much as outer.
The difference might be enough to have less friction on the threads.
Forum: Pentax Medium Format 12-01-2017, 06:33 AM  
Pentax 6x7 film setting
Posted By MysteryOnion
Replies: 7
Views: 855
Setting the ASA is only needed if it has a meter...?
If so equipped, the dial is located with the shutter speed dial and you need only lift the ring up to move the ASA setting.
Otherwise, a plain prism with body has no need for setting the ASA.
Hope that helps.
Enjoy that 6X7!
Forum: Troubleshooting and Beginner Help 11-20-2017, 04:25 AM  
Winder LX question
Posted By MysteryOnion
Replies: 2
Views: 507
Its been a long time since being inside my LX... check here in the forum... for a wiring diagram of the winder... and Y161.
I don't recall having to wrestle with my selector switch and it's contract brush, but it does look familiar?
Forum: Pentax Medium Format 10-16-2017, 12:03 PM  
HELP Pentax 645 winding issue
Posted By MysteryOnion
Replies: 11
Views: 1,046
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: 560
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: 1,976
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: 1,976
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: 1,976
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: 17
Views: 1,494
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: 17
Views: 1,494
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: 17
Views: 1,494
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: 795
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: 675
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: 675
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: 675
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: 505
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: 937
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?
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