Working with Mamiya-Sekor C 1:2.8 f=80mm Sticky aperture blades and Stiff focus ring PART 1
ฝัง
- เผยแพร่เมื่อ 26 ส.ค. 2024
- In this video I will show how to work with Mamiya-Sekor C 1:2.8 f=80mm if it has sticky aperture blades or if there's a stiff focus ring. I will fully disassemble the aperture assembly and the focus assembly, then cleaning the parts and then in the PART 2 that will come sooner, I will show how to assemble the lens again.
REMEMBER TO set small marks BEFORE disassemble the aperture assembly and the focus helicoids!
Here are some link's to different repair tool's and lubricating stuff:
"ORBIT" HEPA Blower:
photosol.com/p...
You can buy it here:
www.adorama.co...
"Liqui-Moly" LM 50 Litho HT:
www.amazon.co....
"Liqui-Moly" LM47 MoS2 grease with Molybdenum disulfide:
products.liqui...
or on Amazon:
www.amazon.co....
Contact glue:
www.loctitepro...
SpyderLENSCAL:
www.datacolor....
Japan Hobby Tool rubber cone:
www.amazon.com...
18 different size rubber repair tool's:
www.amazon.com...
Divider Caliper Wing Compass:
www.amazon.co....
You can also buy this set.
Lens Repair Set with pointed, flat, half flat tips:
www.amazon.com...
JIS cross head screw driver's:
www.amazon.com...
Or this set, that is the set I use:
eustore.ifixit...
Lens cleaning wipes (PEC-PAD):
www.amazon.com...
Thin Cotton Buds x 200 you can buy them here:
www.muji.eu/pa...
DSLRKIT Pro Lens Vise Tool Repair Filter Ring Ajustment Steel 27mm to 130mm:
www.amazon.com...
Japan Hobby Tool Herical Grease Made in Japan:
www.amazon.com...
Loctite 222 50ml Threadlocker
www.amazon.com...
And you will also need some Isopropylalcohol 99%
And sometimes Lighter Fluid that is very good to clean lens element's.
NOTE: Do NOT! use Acetone on platic part's, it will damage / melting the plastic!!!
hello!! i need to learn how to clean a Sigma 600 contemporany, great work you do my friend
Can Focus Ring be removed and cleaned after removing the front glass elements only. Or do the Aperture blades need to be removed and rear as well in order to get to remove and clean focus ring.
You sound danish. Are you located in Denmark?
A week too late for me! I took mine apart last Sunday as the focus was seized. Now it's all in bits. I guess that will make getting the helicoids correctly lined up somewhat challenging?
My aperture blades are fine. I "only" want do clean and grease the sticky focus setting. Do you have any advice? thanks, Peter
btw: wonderful video!!!
I'm also interested in this
Do you have advice for working on a stiff aperture ring on a Mamiya TLR 65mm f/3.5 lens. It seems to open and close fine, but the ring is difficult ti turn especially closer to wide ope. Thank you for the great work and service that you are providing to vintage camera lovers.
Hi Mikeno and thanks for your videos, I have an 80mm f1.9 with a stiff focus ring and I'd like to re-grease it, have you ever worked on it and can you give me directions on how to disassemble? Thanks
Hey Kenneth , do you have a milvus 85 mm video how to change the ring closest to the mount ?I had a drop and the focus ring is stuck with the ring closest to the mount
I already cleaned a Mamiya-Sekor C f=55mm using your info but it seems that I lost one of the screws that holds the mount. Do you know where can I get one of these screws?
Congratulations for your wonderful videos.
Hi Mikeno, I have the same lens and cannot loosen the outer lens group. I’ve tried isopropyl, acetone, and lighter fluid to loosen any glue but didn’t work. Do you have any other tips that might loosen it enough to remove with rubber tool? Thanks!
Peter! So glad I found your channel. Can I send my lenses to you for cleaning? If so. Please let me know how to do it! Thanks man!
Sorry but I do not have repair service.
Help!!! I have a problem with my Mamiya 645 Super where the pin on the camera will not mate with a lens being attached.... putting a lens on the camera moves the pin all the way to the right and it will not seat in the slot on any lens.... can you refer me to someone who can help me with this issue? Seeing the knowledge on this channel I figured you are my best shot at getting this fixed. Thanks for any help you can give!!!
hi Mikeno! I have very nice sekor 55-110mm f4.5. It's like new it's very clean and perfect.......BUT i can't to get one sharp photo - it's impossible to get definition MAY DAY! i shoot with my GFX 50s and i spend 2 days trying and trying!! help me please
hello !! could you do it sigma 75 300 mm oily outside aperture ring, focus ring? thanks
What are those rubber/silicone (sticky) removal tools called? You refer to a set of nine. Where can they be purchased?
I was wondering if you might have any Experience with repairing a Mamiya 55-110mm f4.5N?
Not at the moment.
@@mikeno62 ah okay, well fortunately my lens that I got did not come in the condition that it was listed as, fortunately it's almost brand new 😊