đánh giá lens canon 17-35 f2.8

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Canon 17-35mm f/2.8 L Full-Frame EF USM (1995-2001) © 2012 mammasfigata.com. All rights reserved.

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Canon EF 17-35mm f/2.8 L (77milimet & gel filters, 1.4"/0.42m close-focus, 18.8 oz./534g, about $800 used.) enlarge. This không lấy phí website"s biggest source of tư vấn is when you use these links, especially this liên kết directly to them at eBay (see How lớn Win at eBay) when you get anything, regardless of the country in which you live. It helps me keep reviewing these oldies when you get yours through these link, thanks! Ken.

July 2012 Canon Đánh Giá Canon Lenses All Reviews

How lớn Use Ultrawide Lenses

Canon Ultrawide Lenses Compared

Canon 16-35mm f/2.8 L II (2007-today)

Canon 16-35mm f/2.8 L (2001-2007)

Canon 17-40mm f/4 L (2003-today)

Canon 17-35mm f/2.8 L (1995-2001)

Canon 20-35mm USM (1993-2007)

Canon 20milimet f/2.8 USM (1992-today)

Canon 20-35mm f/2.8 L (1989-1995)

Tokina 17-35milimet f/4 (2011-)

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Introductiontop

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The Canon EF 17-35milimet f/2.8 L is a lightweight full-frame f/2.8 professional ultrawide zoom for all Canon EOS digital & 35milimet autofocus cameras. It"s the same form size as today"s Canon 17-40milimet f/4 L, but built tougher and a stop faster.

This 17-35mm has instant manual focus override simply by grabbing its focus ring at any time.

Used on a modern camera lượt thích the Canon 5D Mark III with a lens profile loaded, any color fringes are corrected in-camera. This gives better image chất lượng today than we ever could get with this lens when it was new.

Compatibility & Formats

This lens is optimized for 35milimet film & full-frame digital, & of course works on all 1.3x and 1.6x Canon cameras.

This Canon EF EOS 17-35mm f/2.8 works perfectly with every Canon EOS camera ever made, meaning every Canon DSLR & every Canon autofocus 35milimet camera made since 1987.

This means of course it works great on today"s 5D Mark III & Canon 7D, but it works just as well on my original Canon EOS 620 from 1987!

As a full-frame lens, this works on all Canon SLRs, regardless of format. As a full-frame lens, I will be reviewing this lens on full-frame.

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Canon 17-35 2.8. enlarge.

Specifications top

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Name

Canon calls this the CANON ZOOM LENS EF 17-35mm f/2.8 L ULTRASONIC.

EF means "electronic focus," meaning that there is an autofocus motor in the lens itself. All Canon lenses since 1987 have sầu been EF.

L means expensive sầu as L.

ULTRASONIC means USM, which means you may grab the focus ring at any time for instant, silent manual focus override.

Opticstop

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Canon 17-35milimet internal diagram. Aspherical.

15 elements in 10 groups.

The front element is a hand-ground glass aspheric, & another element is also aspherical for a total of two.

Internal focus.

Front and rear groups move sầu inside the barrel as zoomed.

FIlter ring never moves.

Focal Length

17-35milimet.

On 1.3x Canon cameras it will see angles-of-view similar lớn what a 22~45milimet lens would see on a 35mm camera.

On 1.6x Canon cameras it will see angles-of-view similar khổng lồ what a 27~56mm lens would see on a 35milimet camera.

Clearly this is a silly choice for anything other than a full-frame or 35milimet camera.

Angle of View (on 35mm & full-frame cameras)

104º ~ 63º diagonal.

70.5º ~ 38º vertical.

93º ~ 54º horizontal.

Cthua trận Focustop

1.4 feet (0.42m) from the image plane, specified.

Maximum Reproduction Ratiotop

1:9.1 (0.11x).

Diaphragmtop

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Front, Canon 17-35mm at f/2.8 & 17mm. enlarge.

7 blades, somewhat curved.

Stops down khổng lồ f/22.

Focus Scaletop

Yes.

The ring turns from infinity lớn the closest focus distance in about 100.º

Depth-of-Field Scaletop

No.

Infra-Red Focus Indicestop

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Focus Scale, Canon 17-35/2.8.

Yes, marks for 35milimet, 28milimet, 24milimet, 20mm và 17mm focal lengths.

These marks are probably for the 800 nm wavelength.

Filter Threadtop

77mm.

Metal.

Does not move sầu, ever.

Sizetop

Canon specifies 3.3" (83.5mm) diameter by 3.77" (95.7mm) long.

It doesn"t change kích thước as zoomed or focused.

Weighttop

18.840 oz. (534.1g), measured.

Canon specifies 19.2 oz. (545g).

Hoodtop

Plastic bayonet EW-83C II, included.

Casetop

LP1216 sack, included.

Capstop

77milimet E-77U front, included. (ultrasonic cap with gold "ULTRASONIC" và silver "Canon" logos.)

Standard EOS cap rear.

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Qualitytop

Made in Japan.

Price, USA top

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Box, Canon 17-35milimet f/2.8.

2012 May: about $800 used.

Performancetop

Intro Specs Performance Compared Usage Recommendations More

OverallAutofocus Breathing Màu sắc Distortion

Ergonomics Falloff Filters Flare Lateral màu sắc Fringes

Mechanics Sharpness Sunstars

Overall performance top

The Canon 17-35milimet f/2.8 is a well-made, great-handling, lens with optics easily corrected electronically in Canon"s newest cameras.

Autofocus performance top

Autofocus is as we expect from Canon, maybe on the slow side for an ultrawide simply because it isn"t instantaneous.

Auto/Manual Switching

Just grab the focus ring for instant manual-focus override.

You never need lớn touch the AF-MF switch unless you want to lock-out autofocus.

AF Speed

AF is relatively leisurely for an ultrawide lens.

AF Accuracy và Consistency

AF accuracy is fine on my Canon 5D Mark III.

Manual Focus

Manual focus is easy; just move the ring.

Focus Breathing performance top

Focus breathing (the image changing kích cỡ as focused) is mostly of interest lớn cinematographers who don"t want the image changing size ("breathing") as the lens is focused aý muốn different subjects.

The Canon 17-35mm f/2.8 has almost no focus breathing. The only weird thing I see is at the wide over that the center of the image doesn"t change, but the sides cave-in a bit as focused more closely. In other words, at 17mm, if you have two vertical lines on each side of your subject, their tops will move closer to lớn each other as focused more closely!

Color Rendition performance top

The color balance of this 17-35mm f/2.8 matches my other Canon EF lenses.

Distortion performance top

This Canon 17-35mm f/2.8 has some distortion at every setting: barrel at 17mm & pincushion at 35milimet. It"s complex, so it never fully corrects with simple tools, but you can correct it with some of Canon"s software, or in-camera with the 5D Mark III if you shoot CRW raw và then stop & convert lớn JPG in-camera in the PLAY menu.

The distortion can be obvious at the ends of the zoom range, but rarely in the middle.

Use these values in Photoshop"s Lens Distortion tool lớn remove most of it:


at 10" (3m)

on Full-Frame


17mm
+2.0**

© 2012 mammasfigata.com. All rights reserved.

** Waviness remains.

For less distortion in an ultrawide zoom, chose the Canon 20-35milimet f/2.8 L (1989-1995), which has less distortion than any of today"s Canon ultrawides.

Ergonomics performance top

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Canon 17-35/2.8. enlarge.

Ergonomics are the same as Canon"s newest Canon 16-35mm f/2.8 L II và Canon 17-40mm f/4 L.

The zoom flicks easily, with little to lớn no damping.

The zoom range is a little congested at the 17milimet kết thúc.

Falloff (darkened corners) performance top

Falloff is never visible with Peripheral Illumination Correction enabled, an option in the Canon 5D Mark III, Canon 5D Mark II and others, presuming you have sầu data for this lens loaded inlớn your camera.

I"ve greatly exaggerated the falloff by shooting a flat gray target and presenting it against a gray background.

Canon 17-35milimet f/2.8 falloff on full-frame

No Peripheral Illumination Correction


f/2.8
f/4
17mm
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24mm
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35mm
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© 2012 mammasfigata.com. All rights reserved.

With Peripheral Illumination Correction


17mm
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24mm
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35mm
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© 2012 mammasfigata.com. All rights reserved.

Filters, Use with performance top

There"s no problem with vignetting even with thichồng or rotating filters, but don"t push your luck: you"ll get vignetting on full-frame at 17mm if you staông chồng filters.

The filter threads don"t move sầu.

My Hoya HD polarizer works fine, but don"t use polarizers on ultrawide lenses.

Gels can be cut and slipped into a slot over the rear element.

Flare và Ghosts performance top

The 17-35 has almost no ghosts if you get the sun in your image. If you do, there may be a dot or two opposite the sun if the conditions are just right.

Lateral màu sắc Fringes performance top

Used on a modern camera lượt thích the Canon 5D Mark III, which corrects color fringes in-camera when a lens profile is loaded, there are no color fringes. Hooray!

Mechanics performance top

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Rear, Canon 17-35 f/2.8. enlarge.

The Canon 17-35milimet f/2.8 is made as well as the current 16-35milimet f/2.8 L II & better than the Canon 17-40milimet f/4 L.

Filter Threads

Blachồng anodized aluminum.

Hood Mount

Blaông chồng anodized aluminum.

Fore Barrel

Metal.

Focus Ring

Metal, covered with rubber.

Mid-barrel

Plastic.

Internals

Seem lượt thích metal.

Zoom Ring

Metal, rubber-covered.

Zoom Cams

Feel like metal.

Moisture seal at mount

No.

Mount

Chromed metal.

Markings

Paint.

Serial Number

Engraved inlớn the bottom rear of barrel near the mount, and filled with paint.

Date Code

Printed on rear light baffle.

See Canon Date Codes.

Noises When Shaken

Mild lớn moderate rattling.

Made in

nhật bản.

Sharpness performance top

Lens sharpness doesn"t matter much, but it sure distracts amateurs who confuse lens sharpness with picture sharpness.

In the center, the 17-35mm is always super sharp at every aperture. It"s the same in the center as Canon"s newest 16-35mm f/2.8 L II and 17-40milimet f/4 L.

On my 5D Mark III which correct color fringes, it"s about as good at the sides & corners as the older 16-35milimet L. It"s not quite as good as the newest 16-35milimet f/2.8 L II and 17-40milimet f/4 L, but none of these lenses are all that great wide-open in the corners anyway!

Unless you"re a pixel-counter, I wouldn"t worry about it. Far more of an obstacle to lớn sharpness is that ultrawide zooms vary from shot-to-shot and sample-to-sample, & their planes of best focus are rarely planes, and often tilted! Spover too much time trying khổng lồ compare ultrawides, & you can go crazy.

If you worry yourself sick about sharpness, get the 16-35mm f/2.8 L II or Canon 17-40mm f/4 L, or just stop down to lớn f/11 with any of these lenses for much better results.

Sunstars performance top

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At f/22.

With the somewhat curved blades of its 7-bladed diaphragm, sunstars are muted.

This is as much as I can get, & this is at f/22. The stars are asymmetrical 14-pointed.

Comparedtop

Intro Specs Performance Compared Usage Recommendations More

See Canon Ultrawide Zooms Compared.

Usagetop

Intro Specs Performance Compared Usage Recommendations More

AF - MF Switch

Leave this in AF.

Set it to MF only to deactivate autofocus.

Focus Point

I haven"t had any problem with this lens, but with my other Canon ultrawide zooms I usually get the most accurate focus with the center AF area.

Recommendationstop

Intro Specs Performance Compared Usage Recommendations More

This 17-35milimet is lighter than any other Canon f/2.8 zoom, & performs almost as well as the newest.

Get one, I did, & I already own the 16-35mm L II & 17-40milimet. I lượt thích having f/2.8 in the same compact size as the 17-40mm!

If you"ve found the time I"ve spent sharing this professional Reviews helpful, this không lấy phí website"s biggest source of tư vấn is when you use these liên kết, especially this links directly khổng lồ them at eBay (see How lớn Win at eBay) when you get anything, regardless of the country in which you live. It helps me keep reviewing these oldies when you get yours through these links

Thanks!

Ken

More Informationtop

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