ePHOTOzine: K-7 vs. D90 vs. 550D

emr · 08-24-2010, 03:59 PM

A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think.

Nikon D90, Canon EOS 550D & Pentax K7 Comparison Test Digital SLR Review

F-Stop · 08-24-2010, 04:29 PM - **1 Like**

I think this is the best review of a Pentax camera to date as it shows how bad they deal with metering/dynamic range. It's the same reason I hate my K100D and K20D. I'm always trying to compensate by dialing in +0.3-1.0 EV. I might as well forget about a sky and horizon shots or a bird in flight in Av mode as it's just going to fail so I have to switch to Manual.

I love the build quality and ergonomics but I'm beyond frustrated with underexposed shots like in this review. It is for this reason I don't recommend Pentax when asked by friends. I hope what ever new comes out doesn't have this same pitfall.

wll · 08-24-2010, 04:38 PM

Originally posted by emr

A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think.

Nikon D90, Canon EOS 550D & Pentax K7 Comparison Test Digital SLR Review

This is the reason I kept my K-20 D and bought a K-x instead.

Lets hope the K-5 changes things the next time they do a review of these three brands and there upgrades.

wll

zackspeed · 08-24-2010, 04:38 PM

iso 100 not available????why not?
they have activate the shadow correction?so the camera will high noise in shadows at high iso?
the pictures are so dark?my k-7 never,works very accurate..........
looks a little like the typical german testreports

only the skyproblem issometimes a point.

enoeske · 08-24-2010, 04:40 PM

I'm curious as to how they tested these. I didn't see it in the introduction, but making claims about contrast in jpegs? These are all changable settings. And no ISO 100 on the K-7??? The K-X starts at 200 but has an expandable mode to 100, but the K-7 has native ISO 100.

I'm only halfway through test 2 but I can already tell this isn't a very well done "comparison".

Mohawk · 08-24-2010, 04:40 PM

Originally posted by emr

A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think.

Nikon D90, Canon EOS 550D & Pentax K7 Comparison Test Digital SLR Review

A rather basic and error riddled comparison. I dismissed it immediately.

**ManuH** · 08-24-2010, 04:42 PM

Originally posted by emr

A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think.

I hate it when the review cannot even setup the camera correctly. The Pentax K-7 has no ISO 100 ?!? (turn off expanded DR) it only shoot 4 RAWs before choking ?!? (turn off CA/distortion correction).

zackspeed · 08-24-2010, 04:43 PM

yup

stormcloud · 08-24-2010, 04:52 PM

yeah reviewer clearly didn't go to much trouble with the k-7 the iso 200 thing the most obvious one but the continious shooting was woefully innacurate - i easily get 15-20 raw images before the buffer fills and frame rate drops

and of cource the pentax has noticiably worse image quality - strange that dpreview's tests showed that there was very little difference between the k7 and d300 iq in raw captures or perhaps the d90 is better than the d300 now

and the auto white balance lol penalised for correctly picking the dominant light source and i'm not sure the review understood custom white balance

biased reviews like this do annoy me - and to think people will make purchasing descisions based on sucha load of trollop

CWyatt · 08-24-2010, 05:06 PM

Another useless review it seems.

I don't mind if people find fault with the K-7 is they test it properly, but this kind of review, by being very inaccurate, is worse than useless really because it propagates incorrect information.

As well as the ISO and buffer errors straight away, it seems a test of standard JPEG settings and kit lenses more than anything else.

pcarfan · 08-24-2010, 05:11 PM

I don't think it is biased, but rather they are just clueless. The shadow/highlight correction explains the lack of iso 100, and most likely the lens correction was ON for the AF-C to stop after 2-3 shots. Also, I am certain the iso tests were done with jpeg's with what ever Jpeg parameters.

This test clearly shows, If you can't chew gum AND walk at the same time, the K-7 is not for you.

CWyatt · 08-24-2010, 05:11 PM

Originally posted by F-Stop

I think this is the best review of a Pentax camera to date as it shows how bad they deal with metering/dynamic range. It's the same reason I hate my K100D and K20D. I'm always trying to compensate by dialing in +0.3-1.0 EV. I might as well forget about a sky and horizon shots or a bird in flight in Av mode as it's just going to fail so I have to switch to Manual.

Best review to date? It's an error-riddled mess, that does not touch on 'useability' - build quality, feel, ergonomics, sound etc etc. And can't get basics right.

At the risk of generalising, your exposure problems sounds a lot like user error on the face of it.
The meters are very accurate if you know how to use it. It's all relative to mid-tone grey...

zackspeed · 08-24-2010, 05:16 PM

Google Übersetzer

filorp · 08-24-2010, 05:34 PM

Originally posted by pcarfan

This test clearly shows, If you can't chew gum AND walk at the same time, the K-7 is not for you.

fully agree, no iso 100!!! if the rest of the test has been done with such attitude the results are simple to understand

ll_coffee_lP · 08-24-2010, 05:35 PM

What a turd review that was.

c[_]

08-24-2010, 03:59 PM	#1
emr Guest	ePHOTOzine: K-7 vs. D90 vs. 550D A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think. Nikon D90, Canon EOS 550D & Pentax K7 Comparison Test Digital SLR Review

08-24-2010, 04:38 PM	#3
wll Veteran Member Join Date: Nov 2006 Location: Mission Hills, CA Posts: 773	Ouch ! Originally posted by emr A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think. Nikon D90, Canon EOS 550D & Pentax K7 Comparison Test Digital SLR Review This is the reason I kept my K-20 D and bought a K-x instead. Lets hope the K-5 changes things the next time they do a review of these three brands and there upgrades. wll

08-24-2010, 05:06 PM	#10
CWyatt Veteran Member Join Date: Jul 2009 Posts: 1,291	Another useless review it seems. I don't mind if people find fault with the K-7 is they test it properly, but this kind of review, by being very inaccurate, is worse than useless really because it propagates incorrect information. As well as the ISO and buffer errors straight away, it seems a test of standard JPEG settings and kit lenses more than anything else. Last edited by CWyatt; 08-24-2010 at 05:13 PM.

08-24-2010, 05:11 PM	#12
CWyatt Veteran Member Join Date: Jul 2009 Posts: 1,291	Originally posted by F-Stop I think this is the best review of a Pentax camera to date as it shows how bad they deal with metering/dynamic range. It's the same reason I hate my K100D and K20D. I'm always trying to compensate by dialing in +0.3-1.0 EV. I might as well forget about a sky and horizon shots or a bird in flight in Av mode as it's just going to fail so I have to switch to Manual. Best review to date? It's an error-riddled mess, that does not touch on 'useability' - build quality, feel, ergonomics, sound etc etc. And can't get basics right. At the risk of generalising, your exposure problems sounds a lot like user error on the face of it. The meters are very accurate if you know how to use it. It's all relative to mid-tone grey... Last edited by CWyatt; 08-24-2010 at 05:34 PM.

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08-24-2010, 04:29 PM - 1 Like	#2
F-Stop Veteran Member Join Date: May 2007 Location: Paradise, Newfoundland, Canada Photos: Gallery \| Albums Posts: 303	I think this is the best review of a Pentax camera to date as it shows how bad they deal with metering/dynamic range. It's the same reason I hate my K100D and K20D. I'm always trying to compensate by dialing in +0.3-1.0 EV. I might as well forget about a sky and horizon shots or a bird in flight in Av mode as it's just going to fail so I have to switch to Manual. I love the build quality and ergonomics but I'm beyond frustrated with underexposed shots like in this review. It is for this reason I don't recommend Pentax when asked by friends. I hope what ever new comes out doesn't have this same pitfall.

08-24-2010, 04:38 PM	#4
zackspeed Veteran Member Join Date: Mar 2010 Posts: 527	iso 100 not available????why not? they have activate the shadow correction?so the camera will high noise in shadows at high iso? the pictures are so dark?my k-7 never,works very accurate.......... looks a little like the typical german testreports only the skyproblem issometimes a point.

08-24-2010, 04:40 PM	#5
enoeske Veteran Member Join Date: Jul 2009 Location: Surprise, Az Photos: Gallery Posts: 2,136	I'm curious as to how they tested these. I didn't see it in the introduction, but making claims about contrast in jpegs? These are all changable settings. And no ISO 100 on the K-7??? The K-X starts at 200 but has an expandable mode to 100, but the K-7 has native ISO 100. I'm only halfway through test 2 but I can already tell this isn't a very well done "comparison".

08-24-2010, 04:40 PM	#6
Mohawk Senior Member Join Date: Nov 2009 Posts: 109	Originally posted by emr A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think. Nikon D90, Canon EOS 550D & Pentax K7 Comparison Test Digital SLR Review A rather basic and error riddled comparison. I dismissed it immediately.

08-24-2010, 04:42 PM	#7
ManuH Site Supporter Join Date: Dec 2007 Location: Montreal Photos: Gallery \| Albums Posts: 1,249	Originally posted by emr A threesome comparison test. Subjective of course, but the result is probably not what people here would like to think. I hate it when the review cannot even setup the camera correctly. The Pentax K-7 has no ISO 100 ?!? (turn off expanded DR) it only shoot 4 RAWs before choking ?!? (turn off CA/distortion correction).

08-24-2010, 04:43 PM	#8
zackspeed Veteran Member Join Date: Mar 2010 Posts: 527	yup

08-24-2010, 04:52 PM	#9
stormcloud Senior Member Join Date: Oct 2009 Posts: 232	yeah reviewer clearly didn't go to much trouble with the k-7 the iso 200 thing the most obvious one but the continious shooting was woefully innacurate - i easily get 15-20 raw images before the buffer fills and frame rate drops and of cource the pentax has noticiably worse image quality - strange that dpreview's tests showed that there was very little difference between the k7 and d300 iq in raw captures or perhaps the d90 is better than the d300 now and the auto white balance lol penalised for correctly picking the dominant light source and i'm not sure the review understood custom white balance biased reviews like this do annoy me - and to think people will make purchasing descisions based on sucha load of trollop

08-24-2010, 05:11 PM	#11
pcarfan Veteran Member Join Date: Sep 2007 Location: Dayton, Ohio Photos: Gallery \| Albums Posts: 2,978	I don't think it is biased, but rather they are just clueless. The shadow/highlight correction explains the lack of iso 100, and most likely the lens correction was ON for the AF-C to stop after 2-3 shots. Also, I am certain the iso tests were done with jpeg's with what ever Jpeg parameters. This test clearly shows, If you can't chew gum AND walk at the same time, the K-7 is not for you.

08-24-2010, 05:16 PM	#13
zackspeed Veteran Member Join Date: Mar 2010 Posts: 527	Google Übersetzer

08-24-2010, 05:34 PM	#14
filorp Veteran Member Join Date: Jun 2008 Location: Aberdeen Scotland Photos: Gallery \| Albums Posts: 398	Originally posted by pcarfan This test clearly shows, If you can't chew gum AND walk at the same time, the K-7 is not for you. fully agree, no iso 100!!! if the rest of the test has been done with such attitude the results are simple to understand

08-24-2010, 05:35 PM	#15
ll_coffee_lP Inactive Account Join Date: Jan 2008 Location: Ontario, Canada Posts: 1,972	What a turd review that was. c[_]