Web Analytics RiceHigh's Pentax Blog: 550D / K-x / EF1740L / EFS18-55IS / DA1645 / FA28 Mixed Shootout!

Sunday, July 04, 2010

550D / K-x / EF1740L / EFS18-55IS / DA1645 / FA28 Mixed Shootout!




550D + 17-40L @ 28 f/8
550D + FA28 f/8
K-x + DA 16-45 @ 28 f/8
K-x + FA28 f/8
FULL
SHOT



Crop 1


Crop 2

FULL
SHOT




Crop 1

Crop 2

Notes:-

1. Click to Download/Enlarge for the "Full Shots". A new Window/Tab will be opened. Do note they are Large Files;

2. If your monitor does not have enough resolution to display the whole table and images at the right side but you still be able to see part of them, just right click on the partial image you want to view and then select "View Image" with your browser and then click "Back" button when finished;

3. For colour accuracy, neither are accurate, the real scene should look like somewhere in between, i.e., the 550D pics look a bit yellower than real whilst the K-x ones
look a bit bluer.

Besides, I add also another pair of comparison for EF-S 18-55 IS Vs DA 16-45:-


550D + EF 18-55 IS
K-x + DA 16-45
FULL SHOT

Notes:-

1. Click to Download/Enlarge for the "Full Shots". A new Window/Tab will be opened. Do note they are Large Files;

2. Both shots were made using the Program Exposure Mode and Auto ISO (100 selected), EXIF data preserved.


Crops? No crops this time, you measurbate yourself! ;-)

P.S. May add DA 16-45/4 on 550D Vs EF 17-40/4L on 550D Later.


Further Reads:-

550D Full Review, Tips and Tricks

Summary Matrix for Equipment Tests and Reviews

Comments (24)

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EF-S 18-55 IS Vs DA 16-45 canon a little sharper imo
1 reply · active 766 weeks ago
In fact, the Canon is sharper and has more details for all shots, even for the same Pentax prime mounted.
I do prefer color rendition of K-x !
Canon 550 with Canon's zoom shows better quality on the cropped image, how did you manage to mount FA28mm on a Canon body? I use this same lens with K100D and are very satisfied with it.
1 reply · active less than 1 minute ago
Via an adaptor, K to EOS, with PCB and circuitry for "AF" focus indication.

As for the FA28, it is a very sharp lens when stopped down.
Michael A.'s avatar

Michael A. · 766 weeks ago

Too bad you couldn't compare to a much sharper manual A28 f2.0. The FA28 f2.8 is considered weak, in pentaxforum.com gets only 8.42 and 2 out of 12 users would not recommend it to a friend.

My $215 used DA16-45 works nicely for movies as well and is much sharper than 18-55L kit lens what came with navy K-x.

Obviously, the $750+ Canon 17-40L is a nice lens! As for color, Pentax' more neutral looks subjectively preferable. Mostly Canon is too warm (Nikon too cold when compared elsewhere) but that can be easily adjusted in PP (or body), if user wants to fiddle with it. Fun comparison HR, thanks!
3 replies · active 766 weeks ago
I think the warm tone is mostly an attribute of the body, but not the lens.
Michael A.'s avatar

Michael A. · 766 weeks ago

Perhaps check on this, because Canon glass was always considered warm before digital age. This comes from my many years in commercial printing & offset pre-press.

Also should be clear the Canon 17-40L and FA28 are Full Format lenses, so they use a "sweet spot" and Canon is also advertised as Digital, as opposed the FA28 is not optimized for digital at all... Just to clarify for those what are not aware of it... :o)
Michael A.'s avatar

Michael A. · 766 weeks ago

If I recall correctly, It was specifically the coating what was responsible for somewhat different color cast. Canon warm, Pentax neutral (SMC recognized by many as a best coating in the industry) and Nikon cooler. But not so relevant today any more....
Is it default in-camera JPEGs?
3 replies · active 766 weeks ago
No, it's my own optimal JPEG settings. If you want to see comparison for factory default settings between the two cameras (almost, coz needed to set as close as possible for the two), see my last "bird" ISO shootout test.
There is the difference in exposure. Tell me, please, your setting for Canon.
Pentax has ZERO at all setting and hue +1.
As told above, the settings are the recommended ones that I told in my K-x and 550D Full Reviews.
from your last set that u leave for us to compare. I can see no difference in sharp between 550d and kx. I figure out the reason. seems that is not my own kx problem. have u ever done a test for your kx. try to shoot same scene with different shutter speed. for my kx. any photo take using shutter speed slower than 1/320, will be a bit blur compare to speed above 1/320. I analysis your photo. the two photo u use at first are speed of 1/160 and 1/200. and the last photo u give is 1/400. I guess that the reason. I do not make any conclusive comment here. everything is my assumption. but at least for my kx. that is the real case.
3 replies · active 766 weeks ago
I do feel that your mentioned suspected problem does exist for many K-x units, but this is nothing scientific anyway.

As for my K-x under test, it has no major shake shown, but the blur would be caused by a number of factors, e.g., inadequate resolution of the lens at that particular focal length, inaccurate focus by the AF, and so on..
u are right. my analysis is kind shallow...
Don't get me wrong. I meant that *my* feeling and observation are not scientific, not referring to yours.
so really please do a comparsion like the first 2 set with the last set u give. let's us see this problem
EF-S 18-55 IS Vs DA 16-45
so seems these two are same sharp
I also see difference in DOF and different focus points
1 reply · active less than 1 minute ago
The shots were all made with AF or according to the focus indication of the AF system. So?
550 Dd made this camera awesome!!

Good post with some photo samples
Both my posts of yesterday are gone. Is this Blog only for favoured views?
1 reply · active 765 weeks ago
Do you refer to these?
http://ricehigh.blogspot.com/2010/07/major-causes...
http://ricehigh.blogspot.com/2010/07/major-causes...

I think you just posted wrongly in a different blog entry after all.

Well, I never delete any comments here, unless they meant to be severe personal attacks.

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