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Canon EF 24-70mm f/2.8L USM

ef_24-70_28u_1_
Review Date: Jan 27, 2008 Recommend? yes | Price paid: Not Indicated | Rating: 10 

 
Pros: IQ, solid build, fast focus, f/2.8
Cons:
none

I bought mine 1 year ago to replace my EF 28-105mm f/3.5-4.5 II USM. So this was my first L lens. What a huge difference!

I was between the Canon EF 24-70 f/2.8, the Canon EF 24-105 f/4, and the Canon EF 17-40 f/4 at that time; but finally went for the 24-70 since I needed a general-purpose lens and preferred to have f/2.8. With this one lens I could shoot both landscape and portrait without changing lenses.

My copy is very sharp, even at wide open. The color, the detail, the contrast and the saturation of the pictures from this lens are excellent. The 24-70 lens focuses very fast, quite, and accurately even in dim light. For portrait, this lens is very capable of making the subject stand out due to its pleasing bokeh. Highly recommended.

http://dongchay.smugmug.com/gallery/3795025#218972478


 
Canon EOS 30D

Canon_30D
Review Date: Jan 18, 2008 Recommend? yes | Price paid: $1,100.00 | Rating: 10 

 
Pros: Build quality, speed (5fps), buffer, AF, high ISO performance, and of course, high image quality
Cons:
AWB??? Sometimes I fell like the AWB of the 20D is better. But I'm not sure.

I bought mine 8 months ago. Before that I used 10D and 20D.

Aside from some small but nice improvements (LCD size, buffer, spot metering, shutter life, ISO settings with 1/3-stop increments ), the 30D is very much the same as the 20D. However, the 30D is more comfortable to use. They both offer excellent image quality at a great price. AF and ISO performance is a big improvement over the 10D. The AF are fast and accurate. The built-in flash is good enough and in some situations it proves to be very useful (as I don't have any external flash). For me, the 30D and 20D are excellent for low light photography (compared to the 10D and some other Nikon bodies that I know).

The pictures from the link below were taken with built-in flash, at mostly ISO 800. No noise reduction, only resize and some sharpening in Photoshop as usual.

http://dongchay.smugmug.com/gallery/4178208#244105867

Other portraits:

http://dongchay.smugmug.com/gallery/3804091#219571197


 
Canon EF 70-200mm f/2.8L USM

ef70_200_28_1_
Review Date: Nov 9, 2007 Recommend? | Price paid: $1,080.00

 
Pros: F2.8, sharp even at wide open, great contrast and color
Cons:
Not weather-sealed. Rotation between the lens and the camera (EOS 30d)

This was my second L glass and I love it. Though my EF 24-70 f/2.8 lens does a really good job as an all-purpose lens, I always missed the reach of a tele zoom (for street & portrait photos). I almost put my trigger on the EF 70-200 f/4 L because of its high reputation and its attractive price. However, from the experience with my 24-70 lens (i.e., using wide open most of the time), I know I would need the one stop the EF 70-200 f/2.8 offers. F/2.8 also help the auto focus faster and more accurately as "with f/2.8 and faster lenses, the vertical line-sensitive sensor at the center AF point will also function to attain high-precision focusing" (EOS 30D manual). I'm now quite happy with that decision as the f/2.8 offers me more flexibility (portrait, action sports, landscape etc). In reviewing my pictures taken with this 70-200 lens, it's quite apparent that most of them were taken at f/2.8 or f/3.2. The sharpness is amazing, even at f/2.8 all the range. The colors and contrast are incredible. For the weight, I feel no problem at all.

As a picture says thousand words, I have some samples on my website. Here is some shot information. The neutral picture style was used with RAW capture. Auto white balance was used. The Digital Photo Profesional software (DPP) was employed to convert RAW to JPG. In DPP, the sharpness was set to 1 and the exposure was corrected (if necessary). No additional adjustments were made aside from some sharpening after resizing the JPG files in Photoshop.

At f/3.2:
http://dongchay.smugmug.com/gallery/3794649#218933718
http://dongchay.smugmug.com/gallery/3794598#218926768

At f/2.8:
http://dongchay.smugmug.com/gallery/3794561#218925306
http://dongchay.smugmug.com/gallery/3794622#218929739

For comparison, here are some shots with the 24-70

At f/2.8
http://dongchay.smugmug.com/gallery/3792360#218767663
At f/8
http://dongchay.smugmug.com/gallery/3792048#218748996


 
Canon EF 70-200mm f/2.8L USM

ef70_200_28_1_
Review Date: Nov 3, 2007 Recommend? yes | Price paid: $1,080.00 | Rating: 10 

 
Pros: F2.8, sharp even at wide open, great contrast and color
Cons:
Not weather-sealed. Rotation between the lens and the camera (EOS 30d)

This was my second L glass and I love it. Though my EF 24-70 f/2.8 lens does a really good job as an all-purpose lens, I always missed the reach of a tele zoom (for street & portrait photos). I almost put my trigger on the EF 70-200 f/4 L because of its high reputation and its attractive price. However, from the experience with my 24-70 lens (e.g., using wide open most of the time), I know I would need the one stop the EF 70-200 f/2.8 offers. F/2.8 also help the auto focus faster and more accurately as "with f/2.8 and faster lenses, the vertical line-sensitive sensor at the center AF point will also function to attain high-precision focusing" (EOS 30D manual). I'm now quite happy with that decision as the f/2.8 offers me more flexibility (portrait, action sports, landscape etc). In reviewing my pictures taken with this 70-200 lens, it's quite apparent that most of them were taken at f/2.8 or f/3.2. The sharpness is amazing, even at f2.8 all the range. The colors and contrast are incredible. For the weight, I feel no problem at all.

As a picture says thousand words, I have some samples on my website. Here is some shot information. The neutral picture style was used with RAW capture. Auto white balance was used. The Digital Photo Profesional software (DPP) was employed to convert RAW to JPG. In DPP, the sharpness was set to 1 and the exposure was corrected (if necessary). No additional adjustments were made aside from some sharpening after resizing the JPG files in Photoshop.

At f3.2:
http://www.gallery.dongchay.com/index.php?list=60

At f2.8:

http://www.gallery.dongchay.com/index.php?id=1299
http://www.gallery.dongchay.com/index.php?id=1123

For comparison, here are some shots with the 24-70

http://www.gallery.dongchay.com/index.php?list=51