Home

Please support mflenses.com if you need any graphic related work order it from us, click on above banner to order!
SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

Basically anything on a Pentax Body
Post new topic   Reply to topic
Home   Digital SLR Cameras
View previous topic :: View next topic  


PostPosted: Thu Feb 13, 2014 4:30 pm    Post subject: Reply with quote
Wow thanks LucisPictor for the quick test. I might have bought it already if only the mount is also for WR bodies. But even if it's available on WR bodies I don't get how it can achieve infinity focus for Konica and Nikon lenses. It's a very good idea though, Konica lenses on a DSLR with SR and with split focus screen Smile. Don't think there's any other camera that can provide such combo, except maybe four thirds DSLRs? Can four thirds mount Konica AR or just m43? m43 seems closest to achieve that with 5-axis stabilization and you can argue the om-d evf is better than split screen, but then it's x2 not x1.5...


PostPosted: Thu Feb 13, 2014 4:59 pm    Post subject: Reply with quote
ouch!
these screws even look as if their heads or not flat but rounded? Shocked


PostPosted: Thu Feb 13, 2014 5:06 pm    Post subject: Reply with quote
Thank you for sharing.

Is the new mount thinner than the Pentax?
I guess it is, since the screws are not fit.

You can still measure one of the screws from film body against one screw from pentax dslr.
If they are matching in length, they won't fit.


PostPosted: Thu Feb 13, 2014 5:13 pm    Post subject: Reply with quote
oops, it must be the original screws, right? if so, why wouldn't they fit?


PostPosted: Thu Feb 13, 2014 7:02 pm    Post subject: Reply with quote
The heads of the original screws are to big for the recess of the drill holes in the bayonet ring.

I need to check for the DSLR.

Nikon lenses need a shim under the ring, otherwise they go beyond infinity.

Konica lenses do NOT achieve infinity!!


PostPosted: Fri Feb 14, 2014 3:22 am    Post subject: Reply with quote
LucisPictor wrote:
The heads of the original screws are to big for the recess of the drill holes in the bayonet ring.

I need to check for the DSLR.

Nikon lenses need a shim under the ring, otherwise they go beyond infinity.

Konica lenses do NOT achieve infinity!!


Thanks for the heads up looking forward to your test on a DSLR!
Btw do you think this will work on a K-01? K-01 is not a WR camera right?


PostPosted: Fri Feb 14, 2014 6:16 pm    Post subject: Reply with quote
bruzzo wrote:
LucisPictor wrote:
The heads of the original screws are to big for the recess of the drill holes in the bayonet ring.

I need to check for the DSLR.

Nikon lenses need a shim under the ring, otherwise they go beyond infinity.

Konica lenses do NOT achieve infinity!!


Thanks for the heads up looking forward to your test on a DSLR!
Btw do you think this will work on a K-01? K-01 is not a WR camera right?


I'm not sure if I'm going to try it on my DSLR. Perhaps I get another, cheap one and try.
The Pentax I have is the cam that my father used and that I have inherited from him. I will neither sell it nor tinker around with it.
The K-01 has, as far as I know, pretty much the same mount as the "normal" Pentax-DSLR. But don't nail me down on that...


PostPosted: Sat Mar 01, 2014 4:27 pm    Post subject: Reply with quote
OK, gentlemen, ladies...

I bought another K100D to try the replacement mount on a DSLR.



As I already wrote, the manufacturing quality of the individual items is pretty good.



Removing the original mount ring is much easier with the K100D than with the film cam I tried.



The replacement ring fits well onto the "gap".


And also the original screws fit.


It all looks pretty good.

But then some problems occured.

The reason why I ordered the "one-fits-all" mount in the first place was that I wanted to have a nice compact DSLR with internal image stablizer and metering for my Nikon lenses.
The thing is that although they write that "F-lenses" would fit using the included shim between lens mount and bayonet, non-AI lenses cannot be mounted!! And AI-lenses only mount with a strong resistance, which always frightens me. I don't want to break anything.

I have not yet tried Olympus or Konica lenses.

The good thing is that Pentax AF lenses still can be mounted just like with the original mount and the AF still works.
Manual Pentax (PK) lenses can be mounted easily, but somehow metering is not precise anymore and strangely enough white balance is off. Shocked

So, with my present experiences and without some more testing, I can unfortunately not recommend that replacement mount.

EDIT: Correction! Please read post below.

Last edited by LucisPictor on Tue Mar 04, 2014 8:16 pm; edited 1 time in total


PostPosted: Sun Mar 02, 2014 8:58 am    Post subject: Reply with quote
Thanks for being the guinea pig and trying. It looks as if this is a no-no.


PostPosted: Sun Mar 02, 2014 10:23 am    Post subject: Reply with quote
philslizzy wrote:
Thanks for being the guinea pig and trying. It looks as if this is a no-no.

I don't know about other lenses yet, but for Nikkor I would not recommend it!


PostPosted: Sun Mar 02, 2014 10:53 am    Post subject: Reply with quote
Why didn't you just put the Nikon's straight onto the Pentax mount?


PostPosted: Sun Mar 02, 2014 11:06 am    Post subject: Reply with quote
Pre ai lenses would fit on pentax, but no click hole to secure the lens, so be careful.


PostPosted: Sun Mar 02, 2014 11:59 am    Post subject: Reply with quote
Yep, exactly that!
Plus, there are problems with accurate focus.


PostPosted: Tue Mar 04, 2014 2:48 pm    Post subject: Reply with quote
OK. Some good news now!

The wrong AWB was a singular incident. PK-lenses work very well with the new mount!!
(I really don't know why the AWB did not choose the correct white balance the other day. Hasn't happened again.)

Zuiko OM lenses also work fine!

So, verdict now:

For Pentax AF lenses = recommendable
For manual PK lenses = recommendable
For OM lenses = recommendable
For AI Nikkors = partially recommendable
For non-AI Nikkors = not recommendable

Konica and Rokkor lenses have not been tested, as they would be only usable for close-ups anyway.


PostPosted: Tue Mar 04, 2014 4:18 pm    Post subject: Reply with quote
Thanks for the update.
I just check the site, K20d is not supported, nor K7, K5.
It would be interesting to use some OM lenses with SR.


PostPosted: Tue Mar 04, 2014 4:51 pm    Post subject: Reply with quote
hoanpham wrote:
Thanks for the update.

You're welcome.

hoanpham wrote:

I just check the site, K20d is not supported, nor K7, K5.

I wonder why the K20D is not supported. It's not weather-resistant, is it?
Perhaps you can mail them and ask.
(I am glad that I did not buy a K20D instead of the K100D, because I was watching some K20D auctions!)

hoanpham wrote:

It would be interesting to use some OM lenses with SR.

The OM Zuiko 1.4/50 is a fine lens on the K100D!


PostPosted: Tue Mar 04, 2014 5:24 pm    Post subject: Reply with quote
Does Pentax K200D work ? (10 mpix vs 6 mpix of k100d)


PostPosted: Tue Mar 04, 2014 8:09 pm    Post subject: Reply with quote
hasan wrote:
Does Pentax K200D work ? (10 mpix vs 6 mpix of k100d)


That's a good question. I was watching several K200D, but they became too expensive.
The 200 is not on the official list, but I wonder why.

Mail them and ask.


PostPosted: Tue Mar 04, 2014 8:32 pm    Post subject: Reply with quote
Interesting thread,The K200D is WR and I think the K20D is as well.


PostPosted: Tue Mar 04, 2014 8:40 pm    Post subject: Reply with quote
Pentax k10, k20, k7, k5 are all WR.
K20 can be as low as 200usd, <10k clicks.
K7 <300usd, while k5 still expensive ~500usd.


PostPosted: Wed Mar 05, 2014 12:20 pm    Post subject: Reply with quote
Update: I have been contacted by Alston, the desinger of that replacement mount. He provided me with additional information and offered his assistance. That is a pretty nice service, isn't it?

Allow me to share his hints:

Quote:
- The black mount shim should be firmly placed and flat onto the rear of the Nikon lens. It is a precision die-cut piece to fit exactly onto the ridge of Nikon mount and will not fall off easily.
- You will need to depress the Pentax DSLR lens release button when mounting Nikon lens as the lens release pin will cause Nikon lens to mount uneven or unable to mount. For Nikon lens dismount, you will need to press it too.
- During mounting of Nikon lens, you need to ensure the lens mount is pressed firmly and flat against the mount ring as sometimes, the aperture tab may cause uneveness.
- You can also try without the black mount shim to mount the Nikon lens. It will mount but lens will be loose fit only. The mount shim purpose is to make the lens fit tight only, not to correct flange register distance difference.
- PK+MM cannot take Minolta MD mount.


I will try that. Smile


PostPosted: Fri Mar 07, 2014 12:55 am    Post subject: Reply with quote
hoanpham wrote:

K20 can be as low as 200usd, <10k clicks.

Or even as low as £40 Razz Razz


PostPosted: Fri Mar 07, 2014 12:09 pm    Post subject: Reply with quote
Farside wrote:
hoanpham wrote:

K20 can be as low as 200usd, <10k clicks.

Or even as low as £40 Razz Razz


What?? Where?


PostPosted: Sat Mar 15, 2014 8:27 pm    Post subject: Reply with quote
LucisPictor wrote:
Farside wrote:
hoanpham wrote:

K20 can be as low as 200usd, <10k clicks.

Or even as low as £40 Razz Razz


What?? Where?


Me, last year. A BIN on ebay - it had only just appeared and I was just having a last look at items before I went off to bed, when there it was.


PostPosted: Sat Mar 15, 2014 9:25 pm    Post subject: Reply with quote
Lucky you!
Post new topic   Reply to topic
Home   Digital SLR Cameras
Goto page Previous  1, 2, 3  Next
Page 2 of 3