Canon 7D FULL Dpreview up

[Samsungian]

And here's another hands~on Canon 7D owners review.

I remember reading his Eos-3 film camera review in the lead up to me buying my first Canon Eos item, an Eos-3 camera like new "used" at local shop in Spring 2007. He's got a Hawaiian slant on life:

Canon EOS 7D Review

Taken from:

http://emedia.leeward.hawaii.edu/frary/photo_index.htm

Main site:

http://emedia.leeward.hawaii.edu/frary/default.htm

Originally Posted by Samsungian

Here's another Canon 7D review

In some ways a far more enjoyable read than dpreview

Enjoy


Canon EOS 7D Review The World According to Roland

[Samsungian]

Pentax adjusting its metadata to create the illusion of using a longer lens has always bugged me. Even my 2005-6 era Pentax DS2 clones do this adjustment to metadata.

Pentax K-7 is 14.6mp at 1.53x crop

Canon 7D is 18mp at 1.6x crop

Which camera has greater reach?

I'm guessing Canon 7D

Originally Posted by pingflood

Canon doesn't translate focal lengths. It shows 400/5.6L just like it should -- the focal length of the lens does not change regardless of the camera it is mounted on.

I am not entirely sure what you're on about otherwise; thought we were discussing whether higher density sensors give you more "reach" or not?

[ogl]

The DPREVIEW is some kind of absurd.

One man downloaded RAW files from review -
Canon EOS 7D Review: 14. Photographic tests (RAW): Digital Photography Review

7D - juk1 - Ó÷àñòíèêè - Ôîòîãàëåðåÿ iXBT
a lot of version of one picture in LR

100% JPEG from LR - FULL-SIZED

default from LR 3.0 with NR OFF in LR
http://fotkidepo.ru/photo/644557/246...5eT/416386.jpg

banding at ISO100.

it's unreal to work with shadows...


ISO 1600 without NR is bad.

The resolution of 7D in tests in RAW is just a bit better than K-7.
18 MP vs 14.6 MP. He-he.

[pingflood]

Originally Posted by Samsungian

Pentax adjusting its metadata to create the illusion of using a longer lens has always bugged me. Even my 2005-6 era Pentax DS2 clones do this adjustment to metadata.

Pentax K-7 is 14.6mp at 1.53x crop

Canon 7D is 18mp at 1.6x crop

Which camera has greater reach?

I'm guessing Canon 7D

I was referring to this:

And Canon is 1.6x instead of Pentax 1.5x. So canon has a bit more reach over K-7 ect.

which makes it seem like it's the crop factor that gives it "reach".

[Samsungian]

Thats what I believe Pentax wants its owners to believe. If not then why does pentax alter the focal length metadata. Why do they say a 50-135mm 2.8 SDM is the modern replacement for the old FA 80-200mm 2.8 ?

as I said I do not buy into the crop format means greater reach. But my Pentax metadata tells me otherwise. If sensors were crazy cheap from day one then crop format would have never existed. It was pointed out to me Canon Crop dslrs do not alter their focal length metadata, yet Pentax does this alteration in camera and in sales literature.




From pentax usa:

The smc PENTAX DA Star 50-135mm F2.8 ED (IF) SDM is a high-performance, telephoto zoom lens.

With extra low dispersion glass and original lens coatings, this lens is superior in contrast, clarity and edge-to-edge sharpness.

The tightly sealed, weather-resistant and dust-resistant construction enhances durability for use in both rainy and dusty conditions, making the DA Star 50-135mm F2.8 ED (IF) SDM lens a perfect companion for the weather-resistant PENTAX DSLR bodies.

The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.

The PENTAX-original SP (Super Protect) coating repels dust, water and grease to keep your lens clean and your image quality at its peak.

The SDM focus system incorporated in this lens results in a smoother, quieter autofocusing operation using a built-in supersonic motor.

The three Extra-low Dispersion (ED) elements compensate for chromatic aberration.

The focal length is equivalent to 76.5mm to 207mm in the 35mm format. <<<<<<<<<<<

Developed specifically for PENTAX digital SLR cameras.




The smc PENTAX DA Star 200mm F2.8 ED (IF) SDM is a fast, high-performance telephoto lens.

The tightly sealed, weather-resistant and dust-resistant construction enhances durability for use in both rainy and dusty conditions, making the DA Star 200mm F2.8 ED (IF) SDM lens a perfect companion for the weather-resistant PENTAX DSLR bodies.

The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.

The PENTAX-original SP (Super Protect) coating repels dust, water and grease to keep your lens clean and your image quality at its peak.

The SDM focus system incorporated in this lens results in a smoother, quieter autofocus operation using a built-in supersonic motor.

The three Extra-low Dispersion (ED) elements compensate for chromatic aberration.

The focal length is equivalent to 300mm in the 35mm format. <<<<<<<<<<<<

Developed specifically for PENTAX digital SLR cameras.


The smc PENTAX DA Star 300mm F4 ED (IF) SDM is a high-performance telephoto lens.

The tightly sealed, weather-resistant and dust-resistant construction enhances durability for use in both rainy and dusty conditions, making the DA Star 300mm F4 ED (IF) SDM lens a perfect companion for the weather-resistant PENTAX DSLR bodies.

The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.

The PENTAX-original SP (Super Protect) coating repels dust, water and grease to keep your lens clean and your image quality at its peak.

The SDM focus system incorporated in this lens results in a smoother, quieter autofocusing operation using a built-in supersonic motor.

The Extra-low Dispersion (ED) elements compensate for chromatic aberration.

The focal length is equivalent to 450mm in the 35mm format. <<<<<<<<<<<

Developed specifically for PENTAX digital SLR cameras.

Originally Posted by pingflood

I was referring to this:


which makes it seem like it's the crop factor that gives it "reach".

[pingflood]

Well, the 50-135 would give a field of view similar to the 80-200 so that is fairly understandable.

And Canon does state something similar regarding their EF-S lenses, e.g. "This high zoom ratio lens is equivalent to a focal length of 88-400mm in the 35mm format (when used on Canon EOS cameras compatible with EF-S lenses)".

That said, monkeying around with the exif data I think is a little silly.

[KungPOW]

I must be missing where Pentax uses the "crop" focal length instead of the true focal length.

PhotoME lists the focal length and then the crop equivilent. (ie 50 and 75)
Lightroom lists the "focal length" and the "focal length 35mm"
The info screen on the back of my camera (K10D) just lists the focal length

Where are you seeing Pentax changing the EXIF data?

[Taff]

if you shoot a fifty cent piece at the same distance with the same lens,
one shot on a APS-C sensor, another shot on FF Sensor the fifty cent piece will be the same size on each picture, just the FF will have more area surrounding it.
AM I CORRECT in my understanding?

[creampuff]

Originally Posted by KungPOW

I must be missing where Pentax uses the "crop" focal length instead of the true focal length.

PhotoME lists the focal length and then the crop equivilent. (ie 50 and 75)
Lightroom lists the "focal length" and the "focal length 35mm"
The info screen on the back of my camera (K10D) just lists the focal length

Where are you seeing Pentax changing the EXIF data?

That's because the Canon troll likes to talk gear but doesn't actually shoot Pentax equipment to know that Pentax doesn't "alter" metadata of focal length. What is listed is the actual focal length of the lens used, lens name and another entry listing the focal length equivalent in 35mm film. But obviously he's under the illusion that Pentax has been misleading photographers ever since the *ist DSLRs were released, because every Pentax DSLR past to present that has an PKA lens or newer attached states the lens metadata completely.

[Samsungian]

Off Brand (Canon, Nikon, ect)

I like to Talk up Nikon gear too

Does that make me a Nikon troll?

I don't use photome, I'll look into it.

On other canon and nikon forums I actually talk up some aspects of Pentax I like.

Does that make me a Pentax troll?

[ll_coffee_lP]

Originally Posted by Samsungian

Off Brand (Canon, Nikon, ect)

I like to Talk up Nikon gear too

Does that make me a Nikon troll?

I don't use photome, I'll look into it.

On other canon and nikon forums I actually talk up some aspects of Pentax I like.

Does that make me a Pentax troll?

hmmm...probably does.

c[_]

[Samsungian]

Sweet! I'm a pentax troll, though when I point out benefits of Pentax on other brand forums no one labels me a troll.

Pentax has its good aspects, Shake reduction, weather seals, legacy glass. But for me its not the end all be all system. Neither is Canon, Neither is Nikon.

Originally Posted by ll_coffee_lP

hmmm...probably does.

c[_]

[Kguru]

Originally Posted by Taff

if you shoot a fifty cent piece at the same distance with the same lens, one shot on a APS-C sensor, another shot on FF Sensor the fifty cent piece will be the same size on each picture, just the FF will have more area surrounding it.
AM I CORRECT in my understanding?

The 50c piece will be the same size on each sensor.
However, on picture, if you view them full-pic on a fixed size screen like a PC monitor, the APS-C pic will show a larger coin. Hence people says APS-C gives more "reach".

Whether that extra reach is real or not depends on the sensors' pixels.

If they have same pixel density (i.e FF Mpix = ~2.25x APS-C Mpix), treat this extra reach about the same as "digital zoom" in P&S.

However if FF Mpix = APS-C Mpix, i.e. APS-C sensor has higher pixel density, and provided that this density does not exceed lens resolution, then yes it is real extra reach. This can be put down to FF sensor not using the full potential of the lens resolution.

Hope it makes sense

[pingflood]

Yes, "reach" is dependent on pixel density, not the crop. There was a fairly heated debate on one of the Canon forums recently where people refused to people the 1Ds II has more "reach" than the 1.3x crop 1D II.

[KungPOW]

So...

Pentax DOES NOT alter the metadata? Then what are you going on about Samsungian? What are you using to view the Pentax metadata? Maybe the software you are using is lying to you and it is not a Pentax issue at all.

As for the idea of "reach"...

+1 to Kguru and pingflood

Pixel density is the important number. Higher the denisity, the tighter you can crop, thus the greater you can reduce the field of view for a given lens. This is not to say the image quality will be the same.

My K10D will have greater reach then my old K100D. With the same lens on both, I can crop the K10D photo to the same pixel size as the K100D photo, and get an image that looks to be taken with a longer lens. Thus greater reach.