| View previous topic :: View next topic |
| Author |
Message |
Eddie46
Joined: 05 Dec 2016
Posts: 135
Location: cardiff,UK
|
 Posted: Wed May 24, 2017 11:14 pm Post subject: PK Speedbooster + M42 adapter. |
 |
|
Eddie46 wrote:
Thinking of getting a Speedbooster (Make undecided as yet) and I was wondering if I could kill two birds with one stone.My Legacy Lenses are a mixture of M42 and PK mounts,so if I bought a PK to M4/3 Speedbooster would I be able to use it for M42 lenses by fitting one of those small PK to M42 ring type adapters meant for Pentax cameras?? Has anyone tried this? |
|
| Back to top |
|
 |
DConvert
Joined: 12 Jun 2010
Posts: 902
Location: Essex UK
|
| Posted: Thu May 25, 2017 6:59 am Post subject: |
|
|
DConvert wrote:
I have a EOS speedbooster that I use with EOS-PK & EOS M42 adapters. When I got it there wasn't a PK speedbooster made.
It works very well & can also be adapted to quite a few other mounts if required. The lack of electronic communication would probably be a pain for EOS lenses, but I don't have any of those  |
|
| Back to top |
|
|
Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
|
| Posted: Thu May 25, 2017 10:33 am Post subject: |
|
|
Sciolist wrote:
I've tried the same, but with a simple adaptor not a speed booster as I also have all m42 or pk.
From my experience, I would say that if you are going down that route, try the Pentax OE ring convertor rather than a copy, as I did. The combination of the Chinese m42 to PK, on to a PK to m4/3 adaptor was too much to ask in terms of tolerances. Light was getting in.
Pentax OE ring convertors seem to be around £35, and say K&F boosters are now around £65. So the costs have narrowed somewhat.
Having said that, one layer of insulating tape around the joint of the combo I tried was effective, but not a great look. I junked it, but it was only a few quid to try it out.
I hope that gives some food for thought Eddie. |
|
| Back to top |
|
|
Eddie46
Joined: 05 Dec 2016
Posts: 135
Location: cardiff,UK
|
| Posted: Tue Jun 13, 2017 3:31 pm Post subject: |
|
|
Eddie46 wrote:
Thanks for the feedback and apologies for *Forgetting* I had posted this question (age has its problems!)
Just as a parallel exercise I tried fitting an A mount to m4/3 adapter with the M42 to A mount adapter,it was a complete shambles and too much too expect.Possible the Cheapo A mount to M4/3 adapter was to blame. |
|
| Back to top |
|
|
baychlen
Joined: 17 Aug 2017
Posts: 39
Location: Spain +/- 3000km
|
| Posted: Sun Sep 10, 2017 11:53 am Post subject: |
|
|
baychlen wrote:
What вould be the difference between MF-->FF reducer x0.7 and FF-->MFT reducer x0.7?
_________________
100% DIY homegrown amateur
KO-140M f1.8, 120 f1.8 / 35KM140 f1.8 / Kipronar 90 f1.9, 105 f1.9, 120 f1.9, 140 f1.9, 165 f2.2, 180 f2.2, 200 f2.1 / Visionar 55 f1.6, 130 f1.9, 141 f1.9, 154 f1.9/ Sonnar 180 f2.8 / Beseler 457 f3.5 / Pancolar 50 f1.8 / RO501-1 f2, 502-1 f2, 503-1 f2 / P5 150 f2, 180 f2 / Helios 44-2 f2 / Industar 51, 37 / Kinostar 125, 150 / Tair-3S 300 f4.5 / Pentacon 80 f2.8 / Diaplan 80 f2.8 / Mir-1B 37 / Triplet-6M 100 f2.8, 365 f3.65 / Jupiter 37A / Senkor 150 f2.5 / Leitz Wetzlar 150 f2.5 / Porst 135 f2.8, 35 f2.8 / Rokinon 135 f2.8 / Panorama 200 f3.5 / Meopta 50 f1 / RO-1091A f1.2 / Prokinar 90 f1.9 |
|
| Back to top |
|
|
DConvert
Joined: 12 Jun 2010
Posts: 902
Location: Essex UK
|
| Posted: Sun Sep 10, 2017 12:11 pm Post subject: |
|
|
DConvert wrote:
| baychlen wrote: |
| What вould be the difference between MF-->FF reducer x0.7 and FF-->MFT reducer x0.7? |
Mainly the mounts & the diameter I think
I think optically the same arrangement can be used, but the front & rear flange distances will probably be critical. |
|
| Back to top |
|
|
Rigel
Joined: 26 Nov 2015
Posts: 121
Location: Belgium
|
| Posted: Sat Oct 21, 2017 11:02 am Post subject: |
|
|
Rigel wrote:
| Sciolist wrote: |
...
...., and say K&F boosters are now around £65. So the costs have narrowed somewhat.
..... |
I have no info about K&F manufacturing speedboosters ? only "dumb" (but very good) adapters ... plse elaborate? 
TIA |
|
| Back to top |
|
|
Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
|
| Posted: Sat Oct 21, 2017 11:35 am Post subject: |
|
|
Sciolist wrote:
| Rigel wrote: |
| Sciolist wrote: |
...
...., and say K&F boosters are now around £65. So the costs have narrowed somewhat.
..... |
I have no info about K&F manufacturing speedboosters ? only "dumb" (but very good) adapters ... plse elaborate?
TIA |
Yes, they make them. I see them on ebay at least. |
|
| Back to top |
|
|
Rigel
Joined: 26 Nov 2015
Posts: 121
Location: Belgium
|
| Posted: Sat Oct 21, 2017 1:04 pm Post subject: |
|
|
Rigel wrote:
| Sciolist wrote: |
| Rigel wrote: |
| Sciolist wrote: |
...
...., and say K&F boosters are now around £65. So the costs have narrowed somewhat.
..... |
I have no info about K&F manufacturing speedboosters ? only "dumb" (but very good) adapters ... plse elaborate?
TIA |
Yes, they make them. I see them on ebay at least. |
Not on my e-bay .. Only dumb adapters and a couple of of auto but no "speed booster" nor "focal reducer" .
Not listed on the representative's web site either https://www.kentfaith.com/
Will inquire with another UK representative. |
|
| Back to top |
|
|
Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
|
| Posted: Sat Oct 21, 2017 2:54 pm Post subject: |
|
|
Sciolist wrote:
| Rigel wrote: |
| Sciolist wrote: |
| Rigel wrote: |
| Sciolist wrote: |
...
...., and say K&F boosters are now around £65. So the costs have narrowed somewhat.
..... |
I have no info about K&F manufacturing speedboosters ? only "dumb" (but very good) adapters ... plse elaborate?
TIA |
Yes, they make them. I see them on ebay at least. |
Not on my e-bay .. Only dumb adapters and a couple of of auto but no "speed booster" nor "focal reducer" .
Not listed on the representative's web site either https://www.kentfaith.com/
Will inquire with another UK representative. |
Rigel, apologies. I've had a check myself. It's Camdiox ,not K&F. |
|
| Back to top |
|
|
Rigel
Joined: 26 Nov 2015
Posts: 121
Location: Belgium
|
| Posted: Sat Oct 21, 2017 3:35 pm Post subject: |
|
|
Rigel wrote:
No problem ... this can happen
BTW do you have any experience with Camdiox speed boosters (I want to try an M42 to NEX) |
|
| Back to top |
|
|
Sciolist
Joined: 29 Mar 2017
Posts: 1445
Location: Scotland
Expire: 2021-04-16
|
| Posted: Sat Oct 21, 2017 3:58 pm Post subject: |
|
|
Sciolist wrote:
| Rigel wrote: |
No problem ... this can happen
BTW do you have any experience with Camdiox speed boosters (I want to try an M42 to NEX) |
No Rigel, but if you've not come across a test, Simon Hawkett has tested one with Takumar's. It's the best I could find when I was hunting around -
https://simonhawketts.com/2014/03/29/camdiox-canon-eos-to-sony-nex-focal-reducer-review/ |
|
| Back to top |
|
|
Rigel
Joined: 26 Nov 2015
Posts: 121
Location: Belgium
|
| Posted: Sat Oct 21, 2017 6:34 pm Post subject: |
|
|
Rigel wrote:
Thanks .. I found that one too but I'll maybe open a new thread about using "stacked" adapters. There are some thing I don't completely understand |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
