[3dreal]

have now new results with P67 300mm new. tested at 100m target. scale has 100m. here are the two K+DF concept Nikon and EOS -adapters. Nikon clearly too thick,
will now collimate using 2cam-method.
EOS showing focus-line at 100mm whereas Nikon-adapter clearly towards infinity. means too thick. can indirectly measure by how much.
must know pitch of helicoid-tread. could be 0,5 or 0.75. most probably 0.75. one rotation= 0.75mm.
How is uploading images to gallery done?

---------- Post added 11-27-22 at 07:54 AM ----------

new 100m test P67-300 new. K+F concept Nikon(plus EOS-adapter) and EOS-adapter used.
Nikon clearly shows it will never get infinity since 100m is towards scale-infinity. if below 100m then it would go past infinity or beyond. its 3mm difference on scale.
IMPORTANT UPDATE: Just checked Nikon-adapter. one nikon-adapter-mount screw of 4 is not fully sitting in. testing now.

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Last edited by 3dreal; 11-27-2022 at 12:00 PM.

[3dreal]

Important finding: Focus-shift must be considered when checking lenses for infinity-reaching on digital. will show you on image same like in last message but 4m tested. 300mm at 5m min. distance.
have here special adapter P67-EOS on 200mm new at f8 first best aperture. f11 equally good and 4m scale is nailed. when opening up to f4 scale is further away from 4m towards infinity. means with this adapter when shooting real infinity cannot be reached since on digital 4m must be a bit below the scale to be able to shoot beyond on film.on digital at the stop when shooting fully open one will get best possible sharpness possible within the quality range of opened lens.Here my infinity is at 8km leica says at least 10km. i mean extraterrestrial must be reached with every lens. eigher adapter must be shaved or made shorter like novoflex did on their new P67-adapter-system- kit with one mount around 300 euro. 1 mount: 100 euro.
Have now 300mm new and at 100 K+F confort is nailed at 1 of 100 on scale. lenses must now collimated.

---------- Post added 12-05-22 at 02:30 AM ----------

Important Tip true for all adapters.
On K+ F concept Nikon-version-on contrary to its EOS-version i have seen a strange focus-shift. distance lower than on EOS. both on nikon and eos-cams-with adapter-tested.
Solved: found out. should have checked the adapter right after the moment when recognizing screw of tripod-socket were loose.!! they didnt add at all loctite. have now added locktite gel(maybe called differently) its a stick with blue gel.
one of the 3 mount-screw came or always was up. Kentfaith didnt test that!!!
Always check your adapters for loose screw and implemented loctite!!
since i still cant reach infinity at 7.8km the option of shaving the adapter is open. must first collimate my lenses 135, 200 and 300mm.
300mm infinity test asas sight allows.
Have a good alternative to use my old Zeiss lenses on FF-EOS DSRL or whatever other cams Leitax is offering. he has no adapters but real mounts which replace the original. Canon R as alternative. he confirmed infinity can be reached on digital since adapter made shorter.
and mirrorclearing on FF-Canon DSRLs seems also perfect, waiting for answer.

[3dreal]

Great news about Infinity-Reaching with P67-lenses. Will lens reach infinity on digital? Is lens deadjusted? or does it go beyond, is shorter adapter needed(getting smaller register)?
Could test again my 7.8km target TV-tower(perfect sight after rain) with 70-210 EF at 210, 300 new and 300 green-star. Although new location under roof was far from ideal, couldnt shoot stable enough and hard to focus i could definitively find out. 300/4 green start P67 lens is going beyond infinity tested on K+F concept P67-EF adapter. this adapter i will describe seperately since is socket one must forget. i use standard tripod.-mount adapter. also have Ni-version but no digital cam. the only relevant results i can provide now are: 1. 300/4. Green-star can certainly get best possible infinity with standard adapter. inf is about 1mm at right side of ∞.
2. so no special variable register adapter P67-clamped(M68-adapter) is needed here with that lens.
3. Advantage of the M68-DSLR-adapter is this "feature" with P67 new lenses(Green-star to be tested): when mounting lens to M68.adapter one must explicitetly set aperture lever to manual or apertures will be stuck. not matter at which position it will be later(Auto or Manual) aperture cannot be opened with that lever. zhis is a great advantage since when stressing aperture can be opened accidentally. yes one will see in review but image may be lost-
Will go into more details in M68-thread and come back here when i have real comparison shot on tripod or when can fix camera on a clamp under roof at roof window. was searching my Novoflex clamps at home. unsuccessfully. i was shooting between f8 and f11 which turned out to be best apertures for 7.8km. at nearer distance f16 could be used. i used selftimer 10sec. in last shots. since cam was wobbly i couldnt perfectly find focus in liveview. on 70-210 zoomlens AF lens MF is not perfect enough finefocussing impossible i switched to AF and signal was perfect.
building on tv-tower is really very sharp. if sharpest i must find out one day at next shooting when camera is clamped or on tripod or on stone.
I have similar discussion on Mflenses forum. will also use loupe next time.