: Sensor resolution V focal length..
- Original Message -
From: Anthony Farr
Subject: RE: Sensor resolution V focal length..
It's been many years since I made a giant enlargement, and only ever type
C
or silver gelatin, never inkjet. I don't miss doing them
- Original Message -
From: Christine Aguila
Subject: Re: Big Prints: Re: Sensor resolution V focal length..
William: Great story! You should write that up try to publish the story
in an appropriate magazine. Cheers, Christine
One of these days, I'll subject you
don't miss doing them.
Regards,
Anthony Farr
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
William Robb
Sent: Saturday, 28 June 2008 1:08 AM
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
- Original
- Original Message -
From: Anthony Farr
Subject: RE: Sensor resolution V focal length..
It's been many years since I made a giant enlargement, and only ever type C
or silver gelatin, never inkjet. I don't miss doing them.
I friend and I were going through the old stock
with a drain.
That was when I discovered that hypo would cure atheletes foot!
Walt
On 6/28/08, William Robb [EMAIL PROTECTED] wrote:
- Original Message -
From: Anthony Farr
Subject: RE: Sensor resolution V focal length..
It's been many years since I made a giant
- Original Message -
From: Walter Hamler
Subject: Re: Big Prints: Re: Sensor resolution V focal length..
God, Bill!! Thanks for the great laugh!
In the common usage, Been there, done that!
I worked as a late teen, before joining the Navy, for an industrial
photographer
On top:
if lens resolution (number of line per mm) is in same order of magnitude
as the number of pixels / mm on the sensor. The lens has the huge
advantage the the lines can be at any place even diagonally, but the
pixels have discrete position making the pixels/mm much less effective,
this
a 10mP sensor
image.
JC OCONNELL
[EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jos
from Holland
Sent: Saturday, June 28, 2008 2:33 PM
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
On top:
if lens
: Saturday, June 28, 2008 2:33 PM
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
On top:
if lens resolution (number of line per mm) is in same order of magnitude
as the number of pixels / mm on the sensor. The lens has the huge
advantage the the lines can
I'm in need of some longer glass, longer than 300mm. It occured to me the other
day that the crop of a given area of a frame would be consirerably bigger the
more resolution you have from the sensor of the camera viewed at 100%. So I'm
thinking 400mm on the K10D would be approximately 33%
Of John
Wittingham
Sent: Friday, June 27, 2008 6:59 AM
To: pdml@pdml.net
Subject: Sensor resolution V focal length..
I'm in need of some longer glass, longer than 300mm. It occured to me the
other day that the crop of a given area of a frame would be consirerably
bigger the more resolution
John,
You are on the right track but it's a bit early (AM) to discuss this
for my brain.
The 100% crop from a 400mm will be bigger than the same photo with a 300mm.
(Need geometry/trig to figure by how much exactly...)
With the K20D vs the K10D, the 400mm will give you 14 megapixels instead of 10.
for this view is when
performing some editing functions, and for pixel peeping.
Regards,
Anthony Farr
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
John Wittingham
Sent: Friday, 27 June 2008 8:59 PM
To: pdml@pdml.net
Subject: Sensor resolution V focal
fl lens.
JC OCONNELL
[EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Anthony Farr
Sent: Friday, June 27, 2008 8:03 AM
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length..
The crop will be the same from
PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Anthony Farr
Sent: Friday, June 27, 2008 8:03 AM
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length..
The crop will be the same from K10d to K20d, because the crop factor is
related to the sensor dimension
-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
That is correct, there will be no resolution loss if you use a K20D with a
shorter lens and crop down to the equivalent of the K10D with the longer
lens. Sensor size does not determine resolution at all (unlike with film).
Pixel
Mail List'
Subject: RE: Sensor resolution V focal length..
Are you trying to say that there will be no resolution loss in using a K20D
with a shorter lens vs a K10D with a longer lens if the AOV of the image
is kept the same via cropping the K20D image? The REAL sensor size of the 2
cameras
;-)
Regards,
Anthony Farr
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J.
C. O'Connell
Sent: Friday, 27 June 2008 10:18 PM
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length..
Are you trying to say
at the same distance in
each case?
Regards,
John
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J.
C. O'Connell [EMAIL PROTECTED]
Sent: 27 June 2008 13:18
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length
June 2008 13:18
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length..
Are you trying to say that there will be no resolution loss in using a K20D
with a shorter lens vs a K10D with a longer lens if the AOV of the image
is kept the same via cropping the K20D image
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Paul Stenquist [EMAIL
PROTECTED]
Sent: 27 June 2008 14:43
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
If your crops were of the same dimension in pixels and the framing on
the bird was the same
] [mailto:[EMAIL PROTECTED] On Behalf Of
John Wittingham
Sent: Friday, 27 June 2008 11:16 PM
To: Pentax-Discuss Mail List
Subject: RE: Sensor resolution V focal length..
Thanks for the responses, OK I think I need to re-word this altogether,
Pentax
K10D 10.2 Megapixels fitted with 400mm
Of Anthony Farr [EMAIL
PROTECTED]
Sent: 27 June 2008 14:56
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length..
John,
Put the 400mm on the K20d and solve all your problems at once ;-)
But seriously, no one can tell you what will be acceptable to you. You'll
have to set
- Original Message -
From: Anthony Farr
Subject: RE: Sensor resolution V focal length..
You
wouldn't print at 100%, the only practical use for this view is when
performing some editing functions, and for pixel peeping.
Often, I print at well over 100%. One of my favourites
] On Behalf Of Paul
Stenquist
Sent: Friday, June 27, 2008 9:43 AM
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
If your crops were of the same dimension in pixels and the framing on
the bird was the same, the K20D and 300 would yield a slightly larger
print
PROTECTED] On Behalf Of P.
J. Alling
Sent: Friday, June 27, 2008 9:47 AM
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
If the the resolution of the lenses (and all other optical qualities as
well), were equal, and assuming that both lenses met or exceeded
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Paul
Stenquist [EMAIL PROTECTED]
Sent: 27 June 2008 14:43
To: Pentax-Discuss Mail List
Subject: Re: Sensor resolution V focal length..
If your crops were of the same dimension in pixels and the framing
To: 'Pentax-Discuss Mail List'
Subject: RE: Sensor resolution V focal length..
Are you trying to say that there will be no resolution loss in
using a K20D
with a shorter lens vs a K10D with a longer lens if the AOV of the
image
is kept the same via cropping the K20D image
J. C. O'Connell [EMAIL PROTECTED] wrote:
nope, the lenses would have to have infinity resolution
for the smaller sensored camera (cropped K20D)to match
the image resolution of the full K10d image. There are no
infinite resolution lenses.
Wouldn't the lense merely have to have sufficient
Subject: Re: Sensor resolution V focal length..
J. C. O'Connell [EMAIL PROTECTED] wrote:
nope, the lenses would have to have infinity resolution
for the smaller sensored camera (cropped K20D)to match
the image resolution of the full K10d image. There are no infinite
resolution lenses
William Robb wrote:
Often, I print at well over 100%. One of my favourites at the moment is a
16x48 inch panoramic
from an istD file.
The final file is 5760 x 14206
I'm on board with that. I haven't upgraded from the K10D to the K20D
and I often shoot with long focal lengths (200-400mm)
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