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raay04
Joined: 08 Dec 2012
Posts: 340
Location: India
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 Posted: Sat Oct 17, 2015 3:59 pm Post subject: Pentax K mount TC conversion to M42 screw mount |
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raay04 wrote:
Hello folks , i will buy a pentak K mount Kenko APK 2x MC7 Macro teleplus( with focus helicoid) . now i dont have any K mount lens and mostly have m42 lenses so i want to convert the lens mounting mount to m42 screw mount. I wanted to know if anyone has done similar conversion . I will only use it on NEX so i dont need aperture automation. More over the register distance for both pentax screw mount and K mount are same , more over i want to mount m39 mount enlargers onto the macro focussing tc . Please let me know your thoughts and experiments if any.
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Cameras-Point and shoot- Powershot A590IS Mirroless-SONY NEX-3
Lenses
M42 Mount
Super-Takumar 55/1.8, Super-Takumar 50/1.4 ,SMC Takumar 50/1.4 ,MC Helios 44M7-58/2,MC Helios 77M-4 50/1.8,Helios 44-2(valdai), Zenitar-M 50/1.7 Pentacon 50/1.8, MC Jupiter-37AM 135/3.5, Industar 50-2 50/3.5
Nikon F mount
Vivitar close focus 28/2.8(Komine) Keleinar 5N 100/2.8
LTM
Jupiter 8 50/2
KIEV
Jupiter8M ( element donor lens )
Minolta SR(MD)
MD 35/1.8, MD 35-70/3.5 macro, MD 50/1.4 ,Vivitar Auto macro 55/2.8,
Canon FD
FDn50/1.4
Minolta AF
Vivitar (cosina) 100/3.5 macro
Minolta AF 35-70/4
Enlarger
EL NIKKOR 50/2.8
Adaptall
Tamron 24/2.5 , Tamron sp 90/2.5 |
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Lloydy
Joined: 02 Sep 2009
Posts: 7795
Location: Ironbridge. UK.
Expire: 2022-01-01
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| Posted: Sun Oct 18, 2015 1:41 am Post subject: |
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Lloydy wrote:
Obviously you will need a NEX to PK adapter , then the MC7 Macro ( which are very good) The good news is, there are simple adapters from PK to M42. I would leave the locking spring in place as you will be using mainly M42 - a lot of people recommend taking the spring off the adapter because they jam in the PK mount, which I think is not the case, it's people not understanding properly how to take them off.
http://www.amazon.com/Fotodiox-Adapter-Pentax-Camera-K-5IIs/dp/B001G4LOCC
I have 2 of those MC7's and rate them very highly.
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LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Sun Oct 18, 2015 2:35 am Post subject: |
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iangreenhalgh1 wrote:
I have used several of those teleconverters to mount projector lenses, they work well.
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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raay04
Joined: 08 Dec 2012
Posts: 340
Location: India
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| Posted: Mon Oct 19, 2015 8:35 am Post subject: |
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raay04 wrote:
Anybody try permanent conversion??
_________________
Cameras-Point and shoot- Powershot A590IS Mirroless-SONY NEX-3
Lenses
M42 Mount
Super-Takumar 55/1.8, Super-Takumar 50/1.4 ,SMC Takumar 50/1.4 ,MC Helios 44M7-58/2,MC Helios 77M-4 50/1.8,Helios 44-2(valdai), Zenitar-M 50/1.7 Pentacon 50/1.8, MC Jupiter-37AM 135/3.5, Industar 50-2 50/3.5
Nikon F mount
Vivitar close focus 28/2.8(Komine) Keleinar 5N 100/2.8
LTM
Jupiter 8 50/2
KIEV
Jupiter8M ( element donor lens )
Minolta SR(MD)
MD 35/1.8, MD 35-70/3.5 macro, MD 50/1.4 ,Vivitar Auto macro 55/2.8,
Canon FD
FDn50/1.4
Minolta AF
Vivitar (cosina) 100/3.5 macro
Minolta AF 35-70/4
Enlarger
EL NIKKOR 50/2.8
Adaptall
Tamron 24/2.5 , Tamron sp 90/2.5 |
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raay04
Joined: 08 Dec 2012
Posts: 340
Location: India
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| Posted: Mon Oct 19, 2015 8:41 am Post subject: |
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raay04 wrote:
http://www.ebay.com/itm/M42-Screw-mount-Lens-adapter-to-Pentax-PK-K-5-K-30-K-M-cameras-NEW-FREE-SHIPPING-/161487914690?hash=item25996e06c2:g:EkkAAOSwuMFUacP~
Anybody try this type of adapter 
_________________
Cameras-Point and shoot- Powershot A590IS Mirroless-SONY NEX-3
Lenses
M42 Mount
Super-Takumar 55/1.8, Super-Takumar 50/1.4 ,SMC Takumar 50/1.4 ,MC Helios 44M7-58/2,MC Helios 77M-4 50/1.8,Helios 44-2(valdai), Zenitar-M 50/1.7 Pentacon 50/1.8, MC Jupiter-37AM 135/3.5, Industar 50-2 50/3.5
Nikon F mount
Vivitar close focus 28/2.8(Komine) Keleinar 5N 100/2.8
LTM
Jupiter 8 50/2
KIEV
Jupiter8M ( element donor lens )
Minolta SR(MD)
MD 35/1.8, MD 35-70/3.5 macro, MD 50/1.4 ,Vivitar Auto macro 55/2.8,
Canon FD
FDn50/1.4
Minolta AF
Vivitar (cosina) 100/3.5 macro
Minolta AF 35-70/4
Enlarger
EL NIKKOR 50/2.8
Adaptall
Tamron 24/2.5 , Tamron sp 90/2.5 |
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