Re: 50mm lenses. ....Re: LX vs K2dmd vs Super Program (update)

2004-08-11 Thread Antonio
I agree Rob. I dont own the 1.2 but have found that A50/1.4 and A50/1.7 are
very different lenses in terms of image renditio as well as sharpness.
A50/1.7 is a fine, very sharp lens at most apetures but seems to lack the
3-D quality of the A50/1.4. For me it is almost as if the A50/1.7 is TOO
sharp for most uses. I dont know , the images just seem a bit flatter with
the 1.7. Sharp but flat. Wheras the 1.4 produces very nicely rendered and
deep images (if that is possible). Would love to see some pictures taken
with A50/1.2 to compare.

A.


On 11/8/04 2:26 am, Rob Studdert [EMAIL PROTECTED] wrote:

 
 I tested my Screw 55/1.8, A50/1.7, A50/1.4 and A50/1.2 lenses then other day
 and I my assessment is similar to most peoples WRT sharpness. However that
 factor is far outweighed in my opinion by the variation in rendition due to
 the 
 differences in the lenses characteristics. I found even at mid-range apertures
 each of the lenses have their own image characteristics which are most visible
 at the edges of the frame. Each is good for particular uses, I find it so
 strange that people seem to dismiss the A50/1.2 on the basis that it's not as
 good wide open as a A50/2 or A50/1.7. Sure it's different but still highly
 usable as photographic tool.
 
 I will try to get some sample images up to show what I mean next week.



Re: 50mm lenses. ....Re: LX vs K2dmd vs Super Program (update)

2004-08-11 Thread Antonio
Fred, for me there is  more goinging on between the diffent 50's than
resolution alone. For me (and this is just an opinion here) resolution is
just an indication of whether a lens is gonnna be a poor performer or not.
I.e. Just something to check isnt too bad. But the real qualities of a lens,
i.e. The ones that are going to affect the image most are colour and image
rendition. Like penis size, resolution can be completely misleading as to
real world performance.

Antonio.

On 11/8/04 4:55 am, Fred [EMAIL PROTECTED] wrote:

 
 I did some (limited, of course) testing of a number of samples a few
 years back:
 
 http://www.cetussoft.com/pentax/resolutn.htm
 
 Fred



50mm lenses. ....Re: LX vs K2dmd vs Super Program (update)

2004-08-10 Thread William Robb

- Original Message - 
From: [EMAIL PROTECTED]

Subject: Re: LX vs K2dmd vs Super Program (update)




 Well, when I actually TESTED my 50s I found that the M 50/2 is a
really
 good performer, plus it's cheap and very small.  None of the above
can
 be said for A 50/1.2 from what I've heard (I sold mine a while
back,
 before I had a chance to test it.)

The A 50mm  f/1.2 is pretty soft wide open (though much better than
the Nikkor 50mm f/1.2 that I replaced with the Pentax lens), and is
only ok until about f/8, at which point it is very good indeed.


 So, while you might pick up a faster Pentax 50 which is a LITTLE
better
 (I'd suggest A/1.4 or A/1.7--at least the M50/1.4 is an older
design and
 reputedly not as good) I don't think you'll be disappointed by the
A 50/2
 (assuming it is the same as M50/2) and I'd recommend putting money
towards
 a better telephoto or wider wide if you find the need for that.

All the Pentax 50mm lenses in the f/1.4 to f/2 range are good lenses
(perhaps the K55mm f/1.8 is the exception, it isn't all that
wonderful until well stopped down).
Of all the ones I have, I think the K 50mm f/1.4 is the sharpest,
the M 50mm f/1.4 is the creamiest (for lack of a better term), the
FA 50mm f/1.4 seems most excellent, but I haven't shot a lot with it
yet, and the 1.7s and f/2s in whatever series all seem very good as
well.
I don't have many samples of each, but I have almost a dozen 50mm
lenses in various places around the house, so I have been able to
test (as much as I test anything) more than one sample of most
emulations.

William Robb




Re: 50mm lenses. ....Re: LX vs K2dmd vs Super Program (update)

2004-08-10 Thread Rob Studdert
On 10 Aug 2004 at 18:00, William Robb wrote:

 The A 50mm  f/1.2 is pretty soft wide open (though much better than
 the Nikkor 50mm f/1.2 that I replaced with the Pentax lens), and is
 only ok until about f/8, at which point it is very good indeed.

I tested my Screw 55/1.8, A50/1.7, A50/1.4 and A50/1.2 lenses then other day 
and I my assessment is similar to most peoples WRT sharpness. However that 
factor is far outweighed in my opinion by the variation in rendition due to the 
differences in the lenses characteristics. I found even at mid-range apertures 
each of the lenses have their own image characteristics which are most visible 
at the edges of the frame. Each is good for particular uses, I find it so 
strange that people seem to dismiss the A50/1.2 on the basis that it's not as 
good wide open as a A50/2 or A50/1.7. Sure it's different but still highly 
usable as photographic tool.

I will try to get some sample images up to show what I mean next week.


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998



Re: 50mm lenses. ....Re: LX vs K2dmd vs Super Program (update)

2004-08-10 Thread Fred
 I don't have many samples of each, but I have almost a dozen 50mm
 lenses in various places around the house, so I have been able to
 test (as much as I test anything) more than one sample of most
 emulations.

I did some (limited, of course) testing of a number of samples a few
years back:

http://www.cetussoft.com/pentax/resolutn.htm

Fred




Re: LX vs K2dmd vs Super Program (update)

2004-08-10 Thread Fred
 I'm guessing the only difference is the newer
 styling and A setting on the A lens.

There's a coating difference, it would seem, too.

Fred




LX vs K2dmd vs Super Program (update)

2004-08-09 Thread Jon M
A while back I was asking about comparisons with these
3 cameras, I thought I'd let y'all know how things
have turned out. I recently purchased an LX on ebay,
and will hopefully pick it up this weekend.

Now to improve my selection of glass... I now have 3
bodies and 4 lenses. :) 

* LX *
K1000
A3000

A50/2
M135/3.5
Vivitar 24-48/3.8
Sears 80-200/4




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LX vs K2dmd vs Super Program (update)

2004-08-09 Thread Jon M
A while back I was asking about comparisons with these
3 cameras, I thought I'd let y'all know how things
have turned out. I recently purchased an LX on ebay,
and will hopefully pick it up this weekend.

Now to improve my selection of glass... I now have 3
bodies and 4 lenses. :) 

* LX *
K1000
A3000

A50/2
M135/3.5
Vivitar 24-48/3.8
Sears 80-200/4



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Re: LX vs K2dmd vs Super Program (update)

2004-08-09 Thread Andrew Bingham
Wow, you're going expensive with the LX ;) 

Excellent camera. After some research into my first SLR and a short
'test drive' on a borrowed K1000, I ended up with a P30t, and an MX.
Although I got my mom a K1000 as her first SLR, just to keep things
interchangeable within the family.

Maybe more later. I tend to end up collecting things, and it's been a
while since the last collection of stuff. Not to mention that so far
I'm enjoying the whole photography experience - I can't wait to join
my school's photography club in the fall, and get access to the
darkroom to do my own BW developing!  Something to do other then go
to school to mechanical and aeronautical engineering is always
appreciated.

Hope you enjoy your cameras!

-Andrew

On Mon, 9 Aug 2004 20:52:49 -0700 (PDT), Jon M
[EMAIL PROTECTED] wrote:
 A while back I was asking about comparisons with these
 3 cameras, I thought I'd let y'all know how things
 have turned out. I recently purchased an LX on ebay,
 and will hopefully pick it up this weekend.
 
 Now to improve my selection of glass... I now have 3
 bodies and 4 lenses. :)
 
 * LX *
 K1000
 A3000
 
 A50/2
 M135/3.5
 Vivitar 24-48/3.8
 Sears 80-200/4
 
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