Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-01-2020, 05:44 AM   #46
Moderator
Loyal Site Supporter




Join Date: Feb 2015
Location: Central Florida
Photos: Gallery
Posts: 3,232
QuoteOriginally posted by pepperberry farm Quote
and what that treeline should look like, with the DA40 Limited:

Oh yeah, I see it. Geesh.

08-01-2020, 05:49 AM   #47
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
QuoteOriginally posted by gatorguy Quote
Oh yeah, I see it. Geesh.
and it is just a smidge, just that much....

if I were shooting for Facebook or instagram, you'd never see the difference with their squashing algorithms.... but here and flickr are a different story....
08-01-2020, 06:05 AM   #48
Site Supporter
Site Supporter




Join Date: Feb 2017
Photos: Gallery | Albums
Posts: 1,326
QuoteOriginally posted by pepperberry farm Quote
not for C/Y mount lenses; the instructions (both printed and on the website) state that AR-mount (Konica) lenses will not infinity focus..

infinity focus was one of the issues I checked for with K-mount lenses before I started buying anything else.....

if anything, I have a couple of good, non-infinity focusing lenses, and the rest of this adventure works itself out...

the Nikkor is due today, so we'll see.....
The Nikkor should focus to inf. You can mount them on normal K mount cameras, they just wont lock in place.
08-01-2020, 06:08 AM   #49
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
QuoteOriginally posted by richard0170 Quote
The Nikkor should focus to inf. You can mount them on normal K mount cameras, they just wont lock in place.
agreed - it and OM-mount lenses may save this project yet...


(:

08-01-2020, 10:47 AM - 1 Like   #50
Forum Member




Join Date: Jun 2020
Location: Austin
Posts: 74
QuoteOriginally posted by pepperberry farm Quote
for example - this is the Yashica ML Macro 55/2.8:



this is pretty close to infinity - close enough I was allowing for it....


but here are a couple more that are definitely soft at infinity:



What a shame! That hay bale photo is really lovely otherwise.

Actually, those clouds look weirdly more in focus than the nearer trees. But that may just be contrast playing a trick on me.
08-02-2020, 05:36 AM   #51
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
QuoteOriginally posted by Sykil Quote
What a shame! That hay bale photo is really lovely otherwise.

Actually, those clouds look weirdly more in focus than the nearer trees. But that may just be contrast playing a trick on me.


no worries - hopefully the Nikkor that arrives this week will put to rest any notions that this has been a waste of time....
08-08-2020, 05:36 AM - 1 Like   #52
Site Supporter
Site Supporter




Join Date: Sep 2017
Location: Floreat
Posts: 497
QuoteOriginally posted by pepperberry farm Quote
almost forgot to ask:

I need a list of favorite lenses to sort through/hunt for - so what's your favorite in these mounts?

F-mount (Nikon)
OM-mount (Olympus)
AR-mount (Konica)
C/Y-mount (Contax/Yashica)

I know this is a Pentax site.... but I also know that not everybody shoots only Pentax...
Of the lenses I have, using on my Sony A7ii:
micro Nikkor-P 55mm f3.5 is really sharp (this is the pre Ais lens)
OM 28mm f3.5 is sharp and so darn cute
Konica Hexanon 24mm has just arrived, I am still testing it, I will try to post on the Primes... forum in next 24 hours

And what would I try:
OM 50 mm/f1.8 and 135mm Auto T
One of the Nikkor medium teles, maybe the 105mm, but all the micro Nikkors have great reputations

08-08-2020, 07:02 AM - 1 Like   #53
Pentaxian
Jonathan Mac's Avatar

Join Date: Apr 2009
Location: Madrid, Spain
Posts: 8,294
Certainly an interesting experiment potentially very, very bad for GAS...

I wonder if it would work on a K-1?

It was a fine idea that I suspect was killed off by the success of mirrorless cameras. Indeed, it begs the question - could a multi-mount adapter for mirrorless be produced in this way? It could be even more useful as it would be technically possible to produce one that allowed small adjustments in length to provide infinity focus for all mounts.
08-08-2020, 07:14 AM   #54
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
QuoteOriginally posted by Jonathan Mac Quote
Certainly an interesting experiment potentially very, very bad for GAS...

I wonder if it would work on a K-1?

It was a fine idea that I suspect was killed off by the success of mirrorless cameras. Indeed, it begs the question - could a multi-mount adapter for mirrorless be produced in this way? It could be even more useful as it would be technically possible to produce one that allowed small adjustments in length to provide infinity focus for all mounts.


oh, I agree - it's terrifying if your LBA verges on the uncontrollable...

I suspect you would want the WR version of the mount for a K-1; but finding an Adaptist mount was difficult to begin with....
08-09-2020, 06:52 AM - 3 Likes   #55
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
K-S1a with Nikkor-O 35mm f2

the Nikkor-O 35mm f2 arrived yesterday.... and I think we've achieved infinity focus:

08-13-2020, 06:18 PM   #56
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
a couple of other PF members have asked me about this conversion; I answered in another thread but thought it should be here also:

QuoteOriginally posted by pepperberry farm Quote
it is not without trade-offs; while you still have a fully capable k-mount camera, so far, the other mounts have limitations:

AR-mounts will not focus at infinity

C/Y-mounts are supposed to reach infinity, but the two lenses I've purchased so far do not (and I am loathe to spend any more money on that end)

metering using the green button has been hit-or-miss with two of the three non-K-mount lenses I have... so far, only the Yashica 55mm macro meters accurately...

but... the sensor on the K-S1 produces beautiful colors and wondrous textures, as the shots with both the Yashica ML 55 and this lens can attest to....
08-13-2020, 06:19 PM   #57
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
I've got one more Nikkor lens and one Olympus lens on the way to complete my trial of this project.... then we'll see where we are...
08-14-2020, 04:14 AM   #58
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
K-S1a with Nikkor-O 35mm f2

08-14-2020, 04:18 AM - 1 Like   #59
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster


08-14-2020, 04:19 AM - 2 Likes   #60
amateur dirt farmer
Loyal Site Supporter
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 28,612
Original Poster
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
adaptist, adaptist pk mm, concept, k-mount, lenses, mm, mount, pentax, pk, pk mm installation, tripod
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wanted - Acquired: Adaptist Multi-Mount pepperberry farm Sold Items 7 06-24-2020 05:55 AM
Wanted - Acquired: Adaptist PK+MM Multi Mount niceshot Sold Items 2 11-20-2018 02:43 PM
Wanted - Acquired: Adaptist Non-WR kit or Adaptist body UncleVanya Sold Items 4 01-21-2017 08:38 AM
For Sale - Sold: Brand New FA 31 mm, FA 77 mm, DA* 60-250 mm, DA* 300 mm ppkkcao Sold Items 14 11-02-2014 08:42 PM
Contest Pentax K+ Multi- Mount (PK+MM) x 3 Giveaway by Adaptist Gnarelsek Mini-Challenges, Games, and Photo Stories 73 07-09-2014 06:45 AM



All times are GMT -7. The time now is 06:59 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top