[Fenwoodian]

Yeah, I've got a Helios 40-2 85/1.5 too, and my K1's overhang also doesn't allow me to mount this lens on my K1 either.

I don't have access to a lathe, so I'm thinking of using a hack saw to cut off the protruding ring (and tripod collar) from the lens..

I'll post how it went today or tomorrow, maybe some before and after photos too.

[UncleVanya]

Yeah, I've got a Helios 40-2 85/1.5 too, and my K1's overhang also doesn't allow me to mount this lens on my K1 either.

I don't have access to a lathe, so I'm thinking of using a hack saw to cut off the protruding ring (and tripod collar) from the lens..

I'll post how it went today or tomorrow, maybe some before and after photos too.

Why on earth would an 85 f/1.5 need a tripod collar?

[funktionsfrei]

Ah, well, then that's a different can of worms, since that problem occurs outside the mirror box.

Would be interesting how the K-1's design interacts with that lens, since lenses with a larger bayonet flange already touch the K-1's body (see the various Sigma compatibility threads).

---------- Post added 2016-06-22 at 20:34 ----------

Clarification: This is in relation to that post about the 24mm Samyang TS lens.

If I remember right, it could not be shifted as it would hit the protrusion beneath the flash.

[melander]

Yeah, I've got a Helios 40-2 85/1.5 too, and my K1's overhang also doesn't allow me to mount this lens on my K1 either.

I don't have access to a lathe, so I'm thinking of using a hack saw to cut off the protruding ring (and tripod collar) from the lens..

I'll post how it went today or tomorrow, maybe some before and after photos too.

I tried with my dremel first. I was able to remove alot of material and i guess you could go that way. I found that it produced to much serrated edges. But with a bit of patiance you could make it work.

I was able to mount the lens when I got home with whery little room to spare.
The material in the lens is quite hard. A hacksaw might just toss the lens about. Keep us posted if you where able to keep your fingers

First image after modification.


Was suposed to focus on the flower in the middle... but it turned out ok anyway.

---------- Post added 06-22-2016 at 11:09 PM ----------

Ah, well, then that's a different can of worms, since that problem occurs outside the mirror box.

Would be interesting how the K-1's design interacts with that lens, since lenses with a larger bayonet flange already touch the K-1's body (see the various Sigma compatibility threads).

---------- Post added 2016-06-22 at 20:34 ----------

Clarification: This is in relation to that post about the 24mm Samyang TS lens.

Yeah, I have problem with my Samyang TS and K-1. But then again, I rather use it on my A7R and focus peaking in the viewfinder.

Works great in portrait mode, and you get almost the entire shift in landscape mode

[monochrome]

@funktionsfrei The K-1 mirrorbox is is shallower than those in the traditional FF K-mount film cameras. With added depth of electronics, LCD, sensor and SR mechanism Pentax shortened the mirrorbox to hold down the depth of the overall camera body. The shallower mirrorbox requires a floating mirror.

Incidentally, this isn't a new idea. I think Minolta did something similar in the 80's.

[goatsNdonkey]

Why on earth would an 85 f/1.5 need a tripod collar?

The glass enabling that big aperture must be very, very heavy!

[monochrome]

The glass enabling that big aperture must be very, very heavy!

A* 85/1.4 doesn't have a tripod collar.

[Topsy]

Guys, I wasn't trying to derail this thread with discussions about the mirror box etc.
I was just trying to point out that there are some lenses that would surely be more prone to hit the mirror, as the mirror does pass noticeably closer to the mount than on the k50.
The Berolina Westromat 35/2.8 I mentioned protrudes into the camera and probably might even hit the mirror when focsued to infinity and I'm sure there are lenses out there that worked fine on our other cameras that might now not work anymore. Just didn't want people to break anything.

[OzzRod]

In Soviet Russia we adapt camera to lens! Send K-1.

---------- Post added 22-06-16 at 15:45 ----------

Has anyone tried a Helios 44m yet (not 44-2) It also has a wider than average back.

My Helios 44M and 44M-4 both fit/work fine.

[ksm]

Yeah, I've got a Helios 40-2 85/1.5 too, and my K1's overhang also doesn't allow me to mount this lens on my K1 either.

I don't have access to a lathe, so I'm thinking of using a hack saw to cut off the protruding ring (and tripod collar) from the lens..

I'll post how it went today or tomorrow, maybe some before and after photos too.

well, instead sawing and cutting and all that horrible stuff you want to do to that beautiful lens, you could just unscrew the tripod mount, no? I took my helios to local lens repairs, because I did not have such a tiny screwdriver and they did it for me in 2 minutes.

[nicoprod]

I have the same lens, same camera and have no problem mounting it with the Pentax M42 adapter.

[Ratcheteer]

*warning this is a satire/troll post*

THE EZ FIX!!!!

[UncleVanya]

I have the same lens, same camera and have no problem mounting it with the Pentax M42 adapter.

With the same tripod ring? Maybe that's the real problem?

[melander]

Tripodring was not the problem, i still have mine on.

[Barry Pearson]

Has anyone tried the Samyang 24mm Tilt Shift lens? It had problems on K-30.

Yes, see:

K-1 pentaprism overhang and the Samyang tilt/shift lens