Re: DA 40mm

[P. J. Alling]

The DA 40mm lenses are supposed to be exactly the same optical formula 
as the old M 40mm f2.8, with more modern coatings.  I can't say whether 
that's true or not, I have an old M version and didn't see any 
particular reason to duplicate it with an AF version.  On the other had 
the 40mm seems to be somewhat soft on the edges and corners wide open on 
film, so you might see the same thing using a modern version on a FF camera.



On 1/29/2018 4:22 PM, Gonz wrote:

Anybody try this on full frame?  How much does it vignette?

Thanks,
Gonz




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Re: DA 40mm

[Gonz]

Thanks Larry,  that's just what I was wondering whether I should
get the 43 for better performance or the 40 for smaller profile.  I
wondered about how the K-1 would dominate the size issue anyways.  Now
I think you have answered my question.  I've been using the 31 limited
in this function, but its wider than I wanted and larger as well.
I've also thought about the F50 1.7, which can be had pretty cheap and
is sharp as heck and decently compact.

Gonz


On Mon, Jan 29, 2018 at 4:16 PM, Larry Colen  wrote:
>
>
> Gonz wrote:
>>
>> Anybody try this on full frame?  How much does it vignette?
>
>
> The short answer is it doesn't seem to be much.
>
> The longer answer is that when I got my K-1 I did a test set just
> photographing a white door.  I just posted those photos for you to look for
> yourself:
>
> https://www.flickr.com/photos/ellarsee/sets/72157692049499664
>
> Here they are after applying profile corrections in lightroom:
>
> https://www.flickr.com/photos/ellarsee/sets/72157689924005162
>
> In more detail, I found that as much as I loved the da40 on my K-100 and
> K-x, since it was a great lens and turned the small dslrs into pocketable
> cameras at a very usable focal length, the K-1 was so big that the smaller
> lens didn't make enough of a difference over my 28-75 f/2.8 zoom that I ever
> actually went out photographing with that lens.
>
> I have, since, wished that I had bought the used FA43/1.9 when I had a
> chance, but it was just enough bigger than the DA40 and not enough faster to
> seem worthwhile at the time.
>
> My suggestion is that unless you're getting an awesome deal on the DA40, get
> the FA43 instead, because the slight difference in size won't make much
> difference on the K-1, and the extra stop of speed will.
>
>>
>> Thanks,
>> Gonz
>>
>>
>
> --
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>
>
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Re: DA 40mm

[Larry Colen]

Gonz wrote:

Anybody try this on full frame?  How much does it vignette?


The short answer is it doesn't seem to be much.

The longer answer is that when I got my K-1 I did a test set just 
photographing a white door.  I just posted those photos for you to look 
for yourself:


https://www.flickr.com/photos/ellarsee/sets/72157692049499664

Here they are after applying profile corrections in lightroom:

https://www.flickr.com/photos/ellarsee/sets/72157689924005162

In more detail, I found that as much as I loved the da40 on my K-100 and 
K-x, since it was a great lens and turned the small dslrs into 
pocketable cameras at a very usable focal length, the K-1 was so big 
that the smaller lens didn't make enough of a difference over my 28-75 
f/2.8 zoom that I ever actually went out photographing with that lens.


I have, since, wished that I had bought the used FA43/1.9 when I had a 
chance, but it was just enough bigger than the DA40 and not enough 
faster to seem worthwhile at the time.


My suggestion is that unless you're getting an awesome deal on the DA40, 
get the FA43 instead, because the slight difference in size won't make 
much difference on the K-1, and the extra stop of speed will.




Thanks,
Gonz




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Re: DA 40mm XS on full frame SLR

[P.J. Alling]

Late, (still working on the backlog of old posts), it's not surprising 
that the XS or for that matter the regular DA 40mm would exhibit soft 
corners on film, so does the M 40mm f2.8, they all share the same 
optical design after all.


On 4/2/2013 6:09 PM, Mark C wrote:
I found the corners to be soft on film as well. Less so when focusing 
close than when at infinity. But it covered most of the frame well.


Mark

On 4/2/2013 9:55 AM, Zos Xavius wrote:
The 40XS has clearance for the mirror. Rice high posted samples from 
a 5dmk3 and it didn't fully cover the frame. The corners were very 
soft. Of course on film  it might be better due to film handling 
oblique angles of light beter.









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Re: DA 40mm XS on full frame SLR

[Steffen Zahn]

Interesting. I thought that the XS lenses were not compatible with SLRs because 
there would be a collision with the mirror movement.

Steffen Zahn


Am 02.04.2013 um 01:51 schrieb Mark C pdml-m...@charter.net:

 I recently stumbled on a Pz-1p at a good price and bought it - I doubt that 
 I'll use it much but it is a great camera and I do still shoot film. Took it 
 out to test and tried the DA 40mm XR that came with the K-01 on it, just to 
 see how it looked. I tried this earlier on an MZ-S but since I could not 
 directly control the aperture I did not test it systematically.
 
 The DA 40mm XS works very well on the full frame 35mm film body! There is 
 noticeable light falloff at f2.8, noticeable enough to be objectionable, but 
 it is greatly diminished at f4 and more or less gone at f5.6 and beyond. For 
 an f8 and there lens it would be fine. Pretty remarkable considering the 
 small size (and thinness.)
 
 Mark
 
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Re: DA 40mm XS on full frame SLR

[Mark C]

I was not aware of that. I've used the XS on both an Mz-S and Pz-1p 
without problem. The first try on the Mz-S produced very good results, 
but that camera relies on using an aperture ring to shoot aperture 
priority so I did not do a systematic test. The Pz-1p controls are like 
the K-5, K-7, K-10 etc and have in body control of the aperture, so I 
was able to do a 'blue sky test walking through the apertures one 
setting at a time. I like the 40mm focal length much better on a full 
frame than APS.


Mark

On 4/2/2013 2:38 AM, Steffen Zahn wrote:

Interesting. I thought that the XS lenses were not compatible with SLRs because 
there would be a collision with the mirror movement.

Steffen Zahn





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Re: DA 40mm XS on full frame SLR

[Matthew Hunt]

On Tue, Apr 2, 2013 at 2:38 AM, Steffen Zahn z...@snafu.de wrote:

 Interesting. I thought that the XS lenses were not compatible with SLRs 
 because there would be a collision with the mirror movement.

At one point Pentax leaked a picture of an XS lens that looked like it
protruded into the camera body. That lens wasn't the 40 XS, though.
(They didn't identify what focal length or aperture it was, and it
still hasn't been released.)

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Re: DA 40mm XS on full frame SLR

[Zos Xavius]

The 40XS has clearance for the mirror. Rice high posted samples from a 5dmk3 
and it didn't fully cover the frame. The corners were very soft. Of course on 
film  it might be better due to film handling oblique angles of light beter.

Steffen Zahn z...@snafu.de wrote:

Interesting. I thought that the XS lenses were not compatible with SLRs
because there would be a collision with the mirror movement.

Steffen Zahn


Am 02.04.2013 um 01:51 schrieb Mark C pdml-m...@charter.net:

 I recently stumbled on a Pz-1p at a good price and bought it - I
doubt that I'll use it much but it is a great camera and I do still
shoot film. Took it out to test and tried the DA 40mm XR that came with
the K-01 on it, just to see how it looked. I tried this earlier on an
MZ-S but since I could not directly control the aperture I did not test
it systematically.
 
 The DA 40mm XS works very well on the full frame 35mm film body!
There is noticeable light falloff at f2.8, noticeable enough to be
objectionable, but it is greatly diminished at f4 and more or less gone
at f5.6 and beyond. For an f8 and there lens it would be fine. Pretty
remarkable considering the small size (and thinness.)
 
 Mark
 
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Re: DA 40mm XS on full frame SLR

[Mark C]

I found the corners to be soft on film as well. Less so when focusing 
close than when at infinity. But it covered most of the frame well.


Mark

On 4/2/2013 9:55 AM, Zos Xavius wrote:

The 40XS has clearance for the mirror. Rice high posted samples from a 5dmk3 
and it didn't fully cover the frame. The corners were very soft. Of course on 
film  it might be better due to film handling oblique angles of light beter.





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Re: DA-40mm and spiders

[Nick Clark]

Ah, but I've already got the M ;-)

Nick

-Original Message-
From: Peter J. Alling[EMAIL PROTECTED]
Sent: 05/02/05 00:11:58
To: pentax-discuss@pdml.netpentax-discuss@pdml.net
Subject: Re: DA-40mm and spiders
  Since you can get the M lens for between 125 and 199 I doubt you save 
anything...

Nick Clark wrote:

Does this mean it's identical optically to my SMC-M 40mm f2.8, so I can 
save a fortune buying the new one?

Nick

-Original Message-
From: Lindamood, Mark[EMAIL PROTECTED]
   Second, Margus Mannik's observation of no DA 40mm vignetting 
through the PZ-1p viewfinder is also terrific.  Several have posted that the DA 
lenses throw only an APS-size image circle, but I can't see any reason why 
that's the case.  The DA 40mm objective element is exactly the same size as the 
original pancake, and the entire lens formulation is probably similar. Why 
would it throw a smaller circle?

What I'm getting at is whether the lens will work on the other Pentax 
bodies despite being advertised as exclusive to the *ist bodies.  Maybe Pentax 
is just trying to avoid sales competition with the 43 ltd.?  Margus, 
can you post one of your shots with that nice DA 40mm lens?




  



-- 
I can understand why mankind hasn't given up war. 
During a war you get to drive tanks through the sides of buildings 
and shoot foreigners - two things that are usually frowned on during 
peacetime.
--P.J. O'Rourke

RE: DA-40mm and spiders

[Nick Clark]

Does this mean it's identical optically to my SMC-M 40mm f2.8, so I can save a 
fortune buying the new one?

Nick

-Original Message-
From: Lindamood, Mark[EMAIL PROTECTED]
   Second, Margus Mannik's observation of no DA 40mm vignetting through the 
PZ-1p viewfinder is also terrific.  Several have posted that the DA lenses 
throw only an APS-size image circle, but I can't see any reason why that's the 
case.  The DA 40mm objective element is exactly the same size as the original 
pancake, and the entire lens formulation is probably similar. Why would it 
throw a smaller circle?

What I'm getting at is whether the lens will work on the other Pentax 
bodies despite being advertised as exclusive to the *ist bodies.  Maybe Pentax 
is just trying to avoid sales competition with the 43 ltd.?  Margus, 
can you post one of your shots with that nice DA 40mm lens?

Re: DA-40mm and spiders

[Peter J. Alling]

Since you can get the M lens for between 125 and 199 I doubt you save 
anything...

Nick Clark wrote:
Does this mean it's identical optically to my SMC-M 40mm f2.8, so I can save a 
fortune buying the new one?
Nick
-Original Message-
   From: Lindamood, Mark[EMAIL PROTECTED]
  Second, Margus Mannik's observation of no DA 40mm vignetting through the PZ-1p viewfinder is also terrific.  Several have posted that the DA lenses throw only an APS-size image circle, but I can't see any reason why that's the case.  The DA 40mm objective element is exactly the same size as the original pancake, and the entire lens formulation is probably similar. Why would it throw a smaller circle?
   
   What I'm getting at is whether the lens will work on the other Pentax bodies despite being advertised as exclusive to the *ist bodies.  Maybe Pentax is just trying to avoid sales competition with the 43 ltd.?  Margus, can you post one of your shots with that nice DA 40mm lens?
   


 


--
I can understand why mankind hasn't given up war. 
During a war you get to drive tanks through the sides of buildings 
and shoot foreigners - two things that are usually frowned on during peacetime.
	--P.J. O'Rourke

Re: DA-40mm and spiders

[Alexandru-Cristian Sarbu]

Maybe the only reason it's named a DA lens (and not D-FA) is the lack
of aperture ring?
It seems too good to be true... unfortunatelly, it won't match a ME Super :(
Well, time to get a Super Program grin

Alex Sarbu


On Thu, 3 Feb 2005 09:51:20 -0500, Lindamood, Mark [EMAIL PROTECTED] wrote:
 First, Rod Studdert's spider shot posted below is way terrific, despite his 
 lousy gear.  Good on ya!  Here's it's north american cousin through a 100mm F 
 and a bad scanner.
 
 http://www.photo.net/photodb/photo?topic_id=1481msg_id=001U4Qphoto_id=265367photo_sel_index=0
 
 Second, Margus Mannik's observation of no DA 40mm vignetting through the 
 PZ-1p viewfinder is also terrific.  Several have posted that the DA lenses 
 throw only an APS-size image circle, but I can't see any reason why that's 
 the case.  The DA 40mm objective element is exactly the same size as the 
 original pancake, and the entire lens formulation is probably similar. Why 
 would it throw a smaller circle?
 
 What I'm getting at is whether the lens will work on the other Pentax bodies 
 despite being advertised as exclusive to the *ist bodies.  Maybe Pentax is 
 just trying to avoid sales competition with the 43 ltd.?  Margus, can 
 you post one of your shots with that nice DA 40mm lens?
 
 http://www.eol.ee/~margus/arvutikasutaja/pancake.jpg
 

Re: DA-40mm and spiders

[Thibouille]

These are supposed to be FA-J aren't they?


Thibouille


On Thu, 3 Feb 2005 17:30:13 +0200, Alexandru-Cristian Sarbu
[EMAIL PROTECTED] wrote:
 Maybe the only reason it's named a DA lens (and not D-FA) is the lack
 of aperture ring?
 It seems too good to be true... unfortunatelly, it won't match a ME Super :(
 Well, time to get a Super Program grin
 
 Alex Sarbu
 
 
 On Thu, 3 Feb 2005 09:51:20 -0500, Lindamood, Mark [EMAIL PROTECTED] wrote:
  First, Rod Studdert's spider shot posted below is way terrific, despite his 
  lousy gear.  Good on ya!  Here's it's north american cousin through a 100mm 
  F and a bad scanner.
 
  http://www.photo.net/photodb/photo?topic_id=1481msg_id=001U4Qphoto_id=265367photo_sel_index=0
 
  Second, Margus Mannik's observation of no DA 40mm vignetting through the 
  PZ-1p viewfinder is also terrific.  Several have posted that the DA lenses 
  throw only an APS-size image circle, but I can't see any reason why that's 
  the case.  The DA 40mm objective element is exactly the same size as the 
  original pancake, and the entire lens formulation is probably similar. Why 
  would it throw a smaller circle?
 
  What I'm getting at is whether the lens will work on the other Pentax 
  bodies despite being advertised as exclusive to the *ist bodies.  Maybe 
  Pentax is just trying to avoid sales competition with the 43 ltd.?  
  Margus, can you post one of your shots with that nice DA 40mm lens?
 
  http://www.eol.ee/~margus/arvutikasutaja/pancake.jpg
 
 
 

Re: DA-40mm and spiders

[Alexandru-Cristian Sarbu]

Of course, but a FA-J (Junior) Limited lens?

Alex Sarbu


On Thu, 3 Feb 2005 17:05:54 +0100, Thibouille [EMAIL PROTECTED] wrote:
 These are supposed to be FA-J aren't they?
 
 
 Thibouille
 
 On Thu, 3 Feb 2005 17:30:13 +0200, Alexandru-Cristian Sarbu
 [EMAIL PROTECTED] wrote:
  Maybe the only reason it's named a DA lens (and not D-FA) is the lack
  of aperture ring?
  It seems too good to be true... unfortunatelly, it won't match a ME Super :(
  Well, time to get a Super Program grin
 
  Alex Sarbu
 
 
  On Thu, 3 Feb 2005 09:51:20 -0500, Lindamood, Mark [EMAIL PROTECTED] 
  wrote:
   First, Rod Studdert's spider shot posted below is way terrific, despite 
   his lousy gear.  Good on ya!  Here's it's north american cousin through a 
   100mm F and a bad scanner.
  
   http://www.photo.net/photodb/photo?topic_id=1481msg_id=001U4Qphoto_id=265367photo_sel_index=0
  
   Second, Margus Mannik's observation of no DA 40mm vignetting through the 
   PZ-1p viewfinder is also terrific.  Several have posted that the DA 
   lenses throw only an APS-size image circle, but I can't see any reason 
   why that's the case.  The DA 40mm objective element is exactly the same 
   size as the original pancake, and the entire lens formulation is probably 
   similar. Why would it throw a smaller circle?
  
   What I'm getting at is whether the lens will work on the other Pentax 
   bodies despite being advertised as exclusive to the *ist bodies.  Maybe 
   Pentax is just trying to avoid sales competition with the 43 
   ltd.?  Margus, can you post one of your shots with that nice DA 
   40mm lens?
  
   http://www.eol.ee/~margus/arvutikasutaja/pancake.jpg
  
  
 
 
 

Re: DA-40mm and spiders

[Margus Männik]

Hi,
FA-J lenses also have no aperture ring ... but ok, FA-J Limited would 
sound really strange. Somewhy it seems, that even Pentax official papers 
do not indicate this lens being suitable for film cameras.
Got my film developed today and there were some three shots made with 
pancake.
Unfortunatelly, only one of 'em is one more-or-less good ... it was the 
very end of the roll and I just had no time to find anything better to 
photograph but nearest available bushes. Sun goes down really quick in 
here at wintertime. Whatever -  myself, I do not see (at least 
significant) vignetting.
 
http://www.eol.ee/~margus/arvutikasutaja/frame34.jpg
(Z-1p (HyP/ spot metered from nearest tree / ML: f8 1/250s*), DA 40 
Limited, Fuji Sensia 100, local photo lab scan).

*)damn, I was searching all my pockets to find this piece of paper with 
exposure data

BR, Margus
Alexandru-Cristian Sarbu wrote:
Maybe the only reason it's named a DA lens (and not D-FA) is the lack
of aperture ring?
It seems too good to be true... unfortunatelly, it won't match a ME Super :(
Well, time to get a Super Program grin
Alex Sarbu
On Thu, 3 Feb 2005 09:51:20 -0500, Lindamood, Mark [EMAIL PROTECTED] wrote:
 

First, Rod Studdert's spider shot posted below is way terrific, despite his 
lousy gear.  Good on ya!  Here's it's north american cousin through a 100mm F 
and a bad scanner.
http://www.photo.net/photodb/photo?topic_id=1481msg_id=001U4Qphoto_id=265367photo_sel_index=0
Second, Margus Mannik's observation of no DA 40mm vignetting through the PZ-1p 
viewfinder is also terrific.  Several have posted that the DA lenses throw only 
an APS-size image circle, but I can't see any reason why that's the case.  The 
DA 40mm objective element is exactly the same size as the original pancake, and 
the entire lens formulation is probably similar. Why would it throw a smaller 
circle?
What I'm getting at is whether the lens will work on the other Pentax bodies 
despite being advertised as exclusive to the *ist bodies.  Maybe Pentax is just 
trying to avoid sales competition with the 43 ltd.?  Margus, can you 
post one of your shots with that nice DA 40mm lens?
http://www.eol.ee/~margus/arvutikasutaja/pancake.jpg

Re: DA-40mm and spiders

[Godfrey DiGiorgi]

DA to me would mean that it's optimized for the digital camera
sensors, and might not return the best results at corners and
edges on 24x36mm format. That does not mean that it would be
unusable, and it might in fact work quite well. 

It's not hard to make a 40mm lens that is well optimized for the
16x24mm digital sensors and is still perfectly  useful for 24x36
format. It's not like making a 14mm lens, where optimization for
the smaller format and overall size/weight/cost concerns means
it will likely NOT be a very good performer on a larger format. 

Godfrey




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Re: DA 40mm pancake

[Alan Chan]

--- Margus Männik [EMAIL PROTECTED] wrote:
 tried one today with... Z-1p. I can not be 100% sure (haven't get my 
 film developed yet), but by looking through viewfinder I would say it 
 doesn't vignette at all! Solid build quality (btw, it is made in 
 Vietnam) and very smooth focussing.

Would be nice if it's actually full frame. Judging from some test shots I have 
seen,
it seems to have better edge/corner sharpness than FA43 on digital, while FA43 
has
better centre sharpness. But then again, my FA43 has always been poor on corner
sharpness.  :-(

=
Alan Chan
http://www.pbase.com/wlachan



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Re: DA 40mm pancake

[Peter J. Alling]

And I thought the 40mm M looked silly on a *ist-D.
Margus Männik wrote:
Hi all,
tried one today with... Z-1p. I can not be 100% sure (haven't get my 
film developed yet), but by looking through viewfinder I would say it 
doesn't vignette at all! Solid build quality (btw, it is made in 
Vietnam) and very smooth focussing.

Looks quite strange at my camera anyway... something like a 300 EUR  
front cover :)))
http://www.eol.ee/~margus/arvutikasutaja/pancake.jpg

BR, Margus
Tallinn, Estonia


--
I can understand why mankind hasn't given up war. 
During a war you get to drive tanks through the sides of buildings 
and shoot foreigners - two things that are usually frowned on during peacetime.
	--P.J. O'Rourke