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Forum: Pentax K-5 11-08-2018, 03:55 AM  
Flashing Red Light
Posted By Roland Karlsson
Replies: 6
Views: 5,069
Ha! I had the same problem. I got that blinking light, and could not turn it off. And a power cycling did not help. Googled it and ended up here. Quite simple actually, but I could not imagine that the remote setting would survive a power cycling.
Forum: Pentax K-3 06-10-2018, 02:42 PM  
The K-3 line will continue!
Posted By Roland Karlsson
Replies: 928
Views: 80,368
The reason was that Pentax/Ricoh had the opinion that K-P was the replacement for K-3ii. They probably wanted to move down the APS-C level a bit, making room for more than one FF.

Then come complaints about that plan. And now they claim that there shall be a K-3ii replacement eventually. No time plan given though.
Forum: Pentax K-3 03-04-2018, 09:24 AM  
The K-3 line will continue!
Posted By Roland Karlsson
Replies: 928
Views: 80,368
So - where did K-3 mk II go if they planned to have a K-3 line all the time?
Forum: Pentax SLR Lens Discussion 10-09-2016, 05:30 AM  
Help! Destroyed screws in PENTAX-M 1:2.8 35 mm
Posted By Roland Karlsson
Replies: 8
Views: 1,006
I managed to get the two destroyed screws out. First I applied some acetone. Then, one of the screws was just easy to take out with the philips screw drive. The second one was harder. I hade to use a sharp "awl" at the edge of the screw head, forcing it around. So, now they are out. I have three undamaged screws. Maybe that is enough. Otherwise, I need two screws.

I have ordered a som bits, containing JIS 000, 00, 0 and 1 bits. I think I shall wait to open the lens until I have got the right bits.
Forum: Pentax SLR Lens Discussion 10-07-2016, 06:23 AM  
Help! Destroyed screws in PENTAX-M 1:2.8 35 mm
Posted By Roland Karlsson
Replies: 8
Views: 1,006
Thank you for your answers. So - it seems like it was dangerous to use my Philips driver to remove the three undamaged JIS screws. You learn new things all the time.

BTW - found JIS bits here:

K

BTW - is this a suitable screw?

MSPPS2003 - M2 x .4 x 3mm - Pan Head Machine Screws - Phillips - Stainless - Micro Fasteners

Is the head thin enough?
Is it an M2x0.4 screw?
Forum: Pentax SLR Lens Discussion 10-06-2016, 01:57 PM  
Help! Destroyed screws in PENTAX-M 1:2.8 35 mm
Posted By Roland Karlsson
Replies: 8
Views: 1,006
I have a PENTAX-M 35mm F/2.8. It has a slow aperture. So, I thought I should disassemble it and fix it.

But, some previous owner have had the same idea and destroyed two of the screws.
There are no crosses there any more, just two round holes. :(

The three other screws I have loosened without any problems. But, of course, the two destroyed
screws is a problem. First I need to take them away somehow, and then I need new screws.

So - my question is regarding those two topics.

1. What is the best way to remove the screws?

2. Where can I find new screws?

The diameter seems to be 1.9 mm (maybe 2 mm) and the length, including head is 2.8 mm.
And the head is very thin.
Forum: Maintenance and Repair Articles 09-29-2013, 04:57 AM  
Sticky: Pentax Lens Disassembly Database
Posted By Roland Karlsson
Replies: 173
Views: 128,480
Here is a good tutorial how to disassemble a Pentax-M 28 F2.8

SMC PENTAX-M 1:2.8 28mm version 1 disassembly.
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