Your perfect 70-200 f/4 IS

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Archive 2008 · Your perfect 70-200 f/4 IS

EB-1
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p.2 #1 · Your perfect 70-200 f/4 IS

bluefox9er wrote:
for the disgustingly high prices we are forced to pay for lenses like these, it is nothing short of a DISGRACE that such a thing as a 'bad' or ' acceptable' copy of a lens should exist.

ALL LENSES should be of outstanding quality...after all, they arn't hand made, they are all mass produced.

I guess as long as we consumers put up with nonsense like 'bad copy' the manufacturers are laughing all the way to the bank.

producing a 'bad copy' can be down to manufacturing errors...to have a 'bad copy' pass quality control and enter supply chain towards the end line user is nothing short of an absolute and total , utter disgrace ,and should be subject to legal implications of providing a consumer a product that significantly fails to comply with original specification.

if you can't provide consistant quality, then vary your pricing strucutre to reflect that you cannot deliver the required quality, or mark it clearly on the packaging telling the customer that you arn't getting what you ** think** you are getting.

Sure, It's easy to blame user error for poor results from a lens, and *sometimes* it might well be user error...but there MUST be a gazillion lens owners out there whose poor performing lenses are exactly that...sub-quality at point of manufacture, but they are keeping them thinking that it is their inability to use the equipment that is yielding unacceptable results.

Most of the consumer lenses such as Canon L series are realitively cheap, i.e, only a couple thousand dollars. The long teles are a bit more expensive and are better built and tested, though not all meet the design criteria. None are really commercial optics which cost 50-250K or more and must deliver the demanded performance. If Canon manufactured lenses with the quality of the handmade and fully tested Leica and Zeiss lenses they would be too expensive for the market, yet I would be willing to pay.

EB

Edited on May 24, 2008 at 05:59 PM

May 24, 2008 at 05:59 PM

bluefox9er
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p.2 #2 · Your perfect 70-200 f/4 IS

a couple of thousand dollars might be nothing to a pro, but for the rest of us who want quality glass, this is a serious investment of money, and one that deserves to give us what we are paying for. wheather it'sa cheapo(

!!!) L lens or a commercial optic, you as a paying customer deserve to buy somehting thats supposed to do what it's supposed to do

May 24, 2008 at 07:48 PM

tom s
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p.2 #3 · Your perfect 70-200 f/4 IS

Oh noo, Canon is becoming a new Sigma. Better try before you buy.

That's sad.

May 25, 2008 at 02:05 AM

Steve Spencer
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p.2 #4 · Your perfect 70-200 f/4 IS

Before people start thinking it is a total crap shoot about getting a good lens, go look at the reviews on this site. This lens is rated at 9.7 out 10, and I don't think that people who don't like the lens are less likely to leave a review. So a whole lot of people have to really like this lens. Often on the internet when 2 or 3 people complain about something it gets totally blown out of proportion. The odds are pretty good you will be very happy with this lens if you buy it.

May 25, 2008 at 02:19 AM

PrecisionPhoto
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p.2 #5 · Your perfect 70-200 f/4 IS

mstolpner wrote:
With so many messages about the bad copies of this lens it is difficult to judge what is a good example. Some feedback from Canon suggests that their QC level allows for quality that most people here on the forum would not accept. So please post why you think your copy is great. Post some unprocessed sample shots with only reasonably small amount of sharpening. I think another useful piece of information on deciding if the lens is good is an approximate percentage of keepers you have.

With all respect , there are to many of you here that rely on hear say and reviews to sway your conviction on camera gear.

go rent one here and have a blast

Edited by PrecisionPhoto on May 24, 2008 at 11:56 PM GMT

Edited on May 25, 2008 at 06:56 AM

May 25, 2008 at 02:36 AM

Dawei Ye
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p.2 #6 · Your perfect 70-200 f/4 IS

bluefox9er wrote:
a couple of thousand dollars might be nothing to a pro, but for the rest of us who want quality glass, this is a serious investment of money, and one that deserves to give us what we are paying for. wheather it'sa cheapo(

!!!) L lens or a commercial optic, you as a paying customer deserve to buy somehting thats supposed to do what it's supposed to do

Since when are pros rich and are able to throw thousands around?

May 25, 2008 at 03:39 AM

danmitchell
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p.2 #7 · Your perfect 70-200 f/4 IS

mstolpner wrote:
With so many messages about the bad copies of this lens it is difficult to judge what is a good example. Some feedback from Canon suggests that their QC level allows for quality that most people here on the forum would not accept. So please post why you think your copy is great. Post some unprocessed sample shots with only reasonably small amount of sharpening. I think another useful piece of information on deciding if the lens is good is an approximate percentage of keepers you have.

People write - often angrily - about any problem and even any _perceived_ problem with their gear. People rarely if ever write about their gear when it works just as expected.

The whole "bad copy" thing is way overblown.

Dan

Edited on May 25, 2008 at 04:28 AM

May 25, 2008 at 04:28 AM

PrecisionPhoto
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p.2 #8 · Your perfect 70-200 f/4 IS

danmitchell wrote:
mstolpner wrote:
With so many messages about the bad copies of this lens it is difficult to judge what is a good example. Some feedback from Canon suggests that their QC level allows for quality that most people here on the forum would not accept. So please post why you think your copy is great. Post some unprocessed sample shots with only reasonably small amount of sharpening. I think another useful piece of information on deciding if the lens is good is an approximate percentage of keepers you have.

People write - often angrily - about any problem and even any _perceived_ problem with their gear. People rarely if ever write about their gear when it works just as expected.

The whole "bad copy" thing is way overblown.

Dan

Well said
The Internet seems to breed more complaints then good news......
When's the last time you've seen an hour of news on TV that was ALL positive for the hour

May 25, 2008 at 05:19 AM

tom s
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p.2 #9 · Your perfect 70-200 f/4 IS

Well, most reviews don't test lenses in all possible conditions (close up/mfd focusing vs infinity)...So, focus shifts are easily overlooked (in both 50 1.2 L and 70-200 f/4 L IS), it's more of a lens design thing than a ''bad'' copy thing.

May 25, 2008 at 01:50 PM

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