If I'm not mistaken, Neal is a longtime troll on this forum (and perhaps others).Just ignore it. I hope my post has value in getting people to think
about the subject. As of the moment there are about 100 replies
which is a lot.
Don T
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If I'm not mistaken, Neal is a longtime troll on this forum (and perhaps others).Just ignore it. I hope my post has value in getting people to think
about the subject. As of the moment there are about 100 replies
which is a lot.
Don T
Diane, you're not mistaken. That's the Neal we've seen before (although he has used other names). In fact, I do believe that the last time he showed his face, he claimed to be a Canon Engineer working on testing the G2.If I'm not mistaken, Neal is a longtime troll on this forum (and
perhaps others).
Diane, you're not mistaken. That's the Neal we've seen beforeIf I'm not mistaken, Neal is a longtime troll on this forum (and
perhaps others).
(although he has used other names). In fact, I do believe that the
last time he showed his face, he claimed to be a Canon Engineer
working on testing the G2.
Bryan
And if I remember correctly the article said the results were
better than what they got with calibration.
How in the world did we get by without PIM for so long? Gee, what
a struggle it's been.![]()
Hope this helps.
Diane, you're not mistaken. That's the Neal we've seen beforeIf I'm not mistaken, Neal is a longtime troll on this forum (and
perhaps others).
(although he has used other names). In fact, I do believe that the
last time he showed his face, he claimed to be a Canon Engineer
working on testing the G2.
Bryan
Exactly! This "new technology" sounds suspiciously like Plug and Pray to me. Frankly, I resent technology that is designed for the clueless and ends up punishing those who know what they're doing.I've read about PIM, but wonder how usefull it will be for those of
us who extensively modify their Photos in.... GULP.. Paint Shop
Pro, or some lesser alternative .. like photoshop.. LOL..
Hope this helps.
Diane, you're not mistaken. That's the Neal we've seen beforeIf I'm not mistaken, Neal is a longtime troll on this forum (and
perhaps others).
(although he has used other names). In fact, I do believe that the
last time he showed his face, he claimed to be a Canon Engineer
working on testing the G2.
Bryan
Exactly! This "new technology" sounds suspiciously like Plug andI've read about PIM, but wonder how usefull it will be for those of
us who extensively modify their Photos in.... GULP.. Paint Shop
Pro, or some lesser alternative .. like photoshop.. LOL..
Pray to me. Frankly, I resent technology that is designed for the
clueless and ends up punishing those who know what they're doing.
How many here print pictures without modifying them at all? I know
I rarely do... usually some sharpening, contrast/bightness, or
saturation adjustment happens first, not to mention proper cropping.
Bryan
No, you're missing our point. PIM is another lame "standard" proposed by Epson designed to sell its line of printers. It's just like that stupid font technology "standard" proposed for the LQ dot matrix line, that was the hope to keep the dot matrix printers selling. Didn't work then, either.Canon is caught in a bind. Pay
to have its printers and cameras have PIM ability or find itself
behind the other major digital camera companies.
Here's EXIF data for shot1:
ExposureTime : 1.00Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:13:47
DateTimeDigitized : 2001:08:08 07:13:47
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1.00Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.80(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Shot 2:
ExposureTime : 1/1Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:14:21
DateTimeDigitized : 2001:08:08 07:14:21
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1/1Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.40(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Peter,
Thanks for doing this. Could you print a few of the variables so
that we can understand the test better (distances, settings, etc.)
Also, it strikes me that the two printed pieces of paper are
different. If this is true, then it would necessarily affect the
test results.
Regards
Here's EXIF data for shot1:
ExposureTime : 1.00Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:13:47
DateTimeDigitized : 2001:08:08 07:13:47
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1.00Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.80(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Shot 2:
ExposureTime : 1/1Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:14:21
DateTimeDigitized : 2001:08:08 07:14:21
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1/1Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.40(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Peter,
Thanks for doing this. Could you print a few of the variables so
that we can understand the test better (distances, settings, etc.)
Also, it strikes me that the two printed pieces of paper are
different. If this is true, then it would necessarily affect the
test results.
No, you're missing our point. PIM is another lame "standard"Canon is caught in a bind. Pay
to have its printers and cameras have PIM ability or find itself
behind the other major digital camera companies.
proposed by Epson designed to sell its line of printers. It's just
like that stupid font technology "standard" proposed for the LQ dot
matrix line, that was the hope to keep the dot matrix printers
selling. Didn't work then, either.
It's a bit much to expect Canon to add PIM to cameras that were out
before it existed, isn't it? Maybe Canon will adopt it, maybe not.
If it becomes a major point that steers folks to other cameras, you
can bet you'll see it. Right now, the masses couldn't care less.
Bryan
I am embarrassed to admit that after owning my G1 or more than six
months it is only now that I have come to realize the G1’s
autofocus deficiency. This is no minor problem, unlike the magenta
overcast, which is easily fixed with an editing program. There is
no easy fix for a camera that has a very weak autofocus system.
Rather than explain the problem in my own words, please read the
exert that I have extracted from Kevin Bjorkes discussion on G1
autofocus (botzilla.com):
Autofocus
“The G1 appears to use a contrast-based AF system. It also
appears to use the entire frame to measure contrast. In other
words, the contrast of pixels along the edges and in the corners
are given just as much importance by the AF system as pixels near
the center.
This uncentered approach has serious consequences for autofocus use
on real scenes. While it's fine for landscapes and may even do well
for group shots, what about a head-and-shoulders portrait?
Canon's G1 manual mentions "autofocus crosshairs" on page 38, but
this is simply wrong they're in the optical finder and clearly have
nothing to do with the Autofocus. What's more, they may give you
the impression that the AF is concentrating on the area of the
crosshairs (like the "target marks" did on the previous Canon
design, the Pro 70) and that's simply not true
The Pro 90 also has a "target bracket" area, which might actually
do something (it's part of the EVF and LCD, not the optical
finder). But both the G1 and Pro 90 manuals claim weakness to
"Subjects with extremely low contrast to the surroundings." Even
the A20 has AF brackets why does the G1 have this crippled system?
Is it some failed prototype of the A20's AiAF ?”
If Kevin is correct in his evaluation of the G1 system, and I for
one have no reason to doubt him, the G1 has one major flaw that has
not been picked up by the various experts who have published
extensive reviews of the G1.
Had I known this at the time I was ready to buy I would have bought
a different camera. (Probably a Nikon 990/995)
One might ask why didn’t I notice this “flaw”
earlier? I have taken many in-focus pictures with the G1 because
the autofocus works adequately for many conditions considering the
very generous depth of fields associated with short focal length
lenses. In fact the focal length of most digital camera lenses are
so short, you could get by with fixed focus for many of your
routine shots. It is in those difficult shots where you most need
the autofocus as for example macros or views with both foreground
and distant objects in the field of view.
There are workarounds using contrast targets or switching between
digital zoom and manual focus (see discussion on botzilla.com ) but
these shouldn’t be needed with a camera of this quality.
Conclusion:
For most of us who have invested so much in the G1 it is a little
too late to do much about it. We will just have to learn how to
live with it and hope Canon will fix the problem on a subsequent
update. I doubt if it can be fixed without some hardware changes.
First Canon has to acknowledge that a problem even exists.
For those considering a G1, give this some thought before you buy.
There are cameras with better auto focus systems.
Don T
--
Donald T
ExposureTime : 1.00Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:13:47
DateTimeDigitized : 2001:08:08 07:13:47
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1.00Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.80(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Shot 2:
ExposureTime : 1/1Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:14:21
DateTimeDigitized : 2001:08:08 07:14:21
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1/1Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.40(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Peter,
Thanks for doing this. Could you print a few of the variables so
that we can understand the test better (distances, settings, etc.)
Also, it strikes me that the two printed pieces of paper are
different. If this is true, then it would necessarily affect the
test results.
Anyway.. what I realized about macros is that it is all in the eye
and expectation of the beholder (isnt that true of all
photography?). When i showed the flower on the home page to my
wife and friends.. they said wow.. that is great.. what camera did
you use. I'm sure however if Bob W or some other flower enthusiast
sees this.. they might say.. what a piece of garbage.. lousy
clarity.. lousy color.. etc. BUT why not give me your opinion.
also.. i need to know if this Tripod website works worth a damn..lol
http://goin480.tripod.com/stevesphotos/
Steve D
I am embarrassed to admit that after owning my G1 or more than six
months it is only now that I have come to realize the G1’s
autofocus deficiency. This is no minor problem, unlike the magenta
overcast, which is easily fixed with an editing program. There is
no easy fix for a camera that has a very weak autofocus system.
Rather than explain the problem in my own words, please read the
exert that I have extracted from Kevin Bjorkes discussion on G1
autofocus (botzilla.com):
Autofocus
“The G1 appears to use a contrast-based AF system. It also
appears to use the entire frame to measure contrast. In other
words, the contrast of pixels along the edges and in the corners
are given just as much importance by the AF system as pixels near
the center.
This uncentered approach has serious consequences for autofocus use
on real scenes. While it's fine for landscapes and may even do well
for group shots, what about a head-and-shoulders portrait?
Canon's G1 manual mentions "autofocus crosshairs" on page 38, but
this is simply wrong they're in the optical finder and clearly have
nothing to do with the Autofocus. What's more, they may give you
the impression that the AF is concentrating on the area of the
crosshairs (like the "target marks" did on the previous Canon
design, the Pro 70) and that's simply not true
The Pro 90 also has a "target bracket" area, which might actually
do something (it's part of the EVF and LCD, not the optical
finder). But both the G1 and Pro 90 manuals claim weakness to
"Subjects with extremely low contrast to the surroundings." Even
the A20 has AF brackets why does the G1 have this crippled system?
Is it some failed prototype of the A20's AiAF ?”
If Kevin is correct in his evaluation of the G1 system, and I for
one have no reason to doubt him, the G1 has one major flaw that has
not been picked up by the various experts who have published
extensive reviews of the G1.
Had I known this at the time I was ready to buy I would have bought
a different camera. (Probably a Nikon 990/995)
One might ask why didn’t I notice this “flaw”
earlier? I have taken many in-focus pictures with the G1 because
the autofocus works adequately for many conditions considering the
very generous depth of fields associated with short focal length
lenses. In fact the focal length of most digital camera lenses are
so short, you could get by with fixed focus for many of your
routine shots. It is in those difficult shots where you most need
the autofocus as for example macros or views with both foreground
and distant objects in the field of view.
There are workarounds using contrast targets or switching between
digital zoom and manual focus (see discussion on botzilla.com ) but
these shouldn’t be needed with a camera of this quality.
Conclusion:
For most of us who have invested so much in the G1 it is a little
too late to do much about it. We will just have to learn how to
live with it and hope Canon will fix the problem on a subsequent
update. I doubt if it can be fixed without some hardware changes.
First Canon has to acknowledge that a problem even exists.
For those considering a G1, give this some thought before you buy.
There are cameras with better auto focus systems.
Don T
--
Donald T
First, I noticed that the shutter speed was 1 second, wide open,
Surely the focus light was engaged! At such a close range, it would
have a highly focused spread. Maybe a little off-center.
Second, Image 1 focusing is listed as 0.80(m), while image 2 is
listed as 0.40(m). But looking at the pictures, image 1 is clearly
focused CLOSER than image 2! So are the EXIFs mixed up, or is the
second shot not really focused on anything, but merely "lost" and
focusing at the far limits, which with macro engaged just happens
to be in the neighborhood of the sofa?
Finally, in both images it's possible that the focus is not on the
"subject" -- the writing on the paper -- at all (A human eye
natural looks to the writing -- but the CCD doesn't read letters,
only pixels). In the near-focus image 1, there is a strong
contrast of the paper against the dark can -- the can is not
present in image 2. In image 2, the focus plane corresponds to a
dark area cause by a gap in the skirting of the sofa -- which is
not present in image 1. In fact these items are the strongest
contrasts in each of their respective frames (barring the possible
involvement of the focus lamp).
kb
PS: I do often cover the doggoned focus lamp in bright contexts --
it's annoying in portraiture and it often causes (or seems to
cause) subject blinks.
Thinking on this does suggest (to me) that the focus light might be
canon's way of providing "centralized autofocus" since the
electronics didn't provide one. It might make all the more sense
when combined with the "autofocus crosshairs" in the OPTICAL finder
-- because in the optical finder, you can see the focus light! In
the EVF, it stutters while focusing.
kb
ExposureTime : 1.00Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:13:47
DateTimeDigitized : 2001:08:08 07:13:47
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1.00Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.80(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Shot 2:
ExposureTime : 1/1Sec
FNumber : F2.5
ExifVersion : 0210
DateTimeOriginal : 2001:08:08 07:14:21
DateTimeDigitized : 2001:08:08 07:14:21
ComponentConfiguration : YCbCr
CompressedBitsPerPixel : 5/1 (bit/pixel)
ShutterSpeedValue : 1/1Sec
ApertureValue : F2.5
ExposureBiasValue : EV0.7
MaxApertureValue : F2.0
SubjectDistance : 0.40(m)
MeteringMode : CenterWeightedAverage
Flash : Not fire
FocalLength : 14.59(mm)
Peter,
Thanks for doing this. Could you print a few of the variables so
that we can understand the test better (distances, settings, etc.)
Also, it strikes me that the two printed pieces of paper are
different. If this is true, then it would necessarily affect the
test results.
If we assume that most of these people know nothing about editing
software and could care less.. then they just might want a printer
that has.. as the new Epson does.. a CF slot which will be used to
print pictures directly from the printer. In these cases.. PIM
offers some advantage. To us.. and the many who really are into
digital photography and digital photo editing.. PIM is marginal if
not useless. BUT.. where will the market go.. that is the question.
By the way.. In my view.. Epson makes great printers... so, they
could easily set the market and Canon will have to respond somehow.
No, you're missing our point. PIM is another lame "standard"Canon is caught in a bind. Pay
to have its printers and cameras have PIM ability or find itself
behind the other major digital camera companies.
proposed by Epson designed to sell its line of printers. It's just
like that stupid font technology "standard" proposed for the LQ dot
matrix line, that was the hope to keep the dot matrix printers
selling. Didn't work then, either.
It's a bit much to expect Canon to add PIM to cameras that were out
before it existed, isn't it? Maybe Canon will adopt it, maybe not.
If it becomes a major point that steers folks to other cameras, you
can bet you'll see it. Right now, the masses couldn't care less.
Bryan
If we assume that most of these people know nothing about editing
software and could care less.. then they just might want a printer
that has.. as the new Epson does.. a CF slot which will be used to
print pictures directly from the printer. In these cases.. PIM
offers some advantage. To us.. and the many who really are into
digital photography and digital photo editing.. PIM is marginal if
not useless. BUT.. where will the market go.. that is the question.
By the way.. In my view.. Epson makes great printers... so, they
could easily set the market and Canon will have to respond somehow.
No, you're missing our point. PIM is another lame "standard"Canon is caught in a bind. Pay
to have its printers and cameras have PIM ability or find itself
behind the other major digital camera companies.
proposed by Epson designed to sell its line of printers. It's just
like that stupid font technology "standard" proposed for the LQ dot
matrix line, that was the hope to keep the dot matrix printers
selling. Didn't work then, either.
It's a bit much to expect Canon to add PIM to cameras that were out
before it existed, isn't it? Maybe Canon will adopt it, maybe not.
If it becomes a major point that steers folks to other cameras, you
can bet you'll see it. Right now, the masses couldn't care less.
Bryan
Totally agree Bob. My new Epson printer (bought as a 'real' deal BTW) will read my CF card, but I would never think of using it. Its a totally unwanted option for me. Now, my brother might use it--he even posts his photos right out of his digicam onto his Yahoo photo site without even rotating them-- LOL. For folks like him where the photos are simply recording something and of little interest beyond that--well, they may be candidates for PIM--and I would suspect the lower priced cameras. Still--some think they will get better point & shoot pics by buying a more expensive camera--and STILL do nothing to the final images. Beyond me!!!Yes, for the low end of the market. If you edit the image, crop
it, or do anything else to it, PIM is gone. It is a dead issue with
digital camera hobbiests, as we edit our images. Now, when PIM
becomes ICC enabled, where we can edit our images, and then
use PIM to output them to the printer, it might become a little
more interesting. Actually, I have a perfectly good ICC file that
handles the output to my printer just fine. Making it simple so
that some people don't feel the need to edit will not make
those that do stop, unless it can sharpen, color correct, read
my mind and crop for me, knowing which objects in the image
are the targets, and has the ability to frame them the way I want.
Lets face it. Until I can talk to my camera and tell it what I want,
I will edit. PIM is a no starter here, even if I don't mention that
the difference in cost between using a PIM enabled Epson and the
Epson I am now using is about 300 percent the wrong way.