CANON 15 - 85mm and 18 - 135mm

[infinity]

Though i know that this is a canon thread.. What about the Sigma lense that i mentioned for the 24 - 70 mm? I know if given a choice, most people would choose the original. But i do believe that third party lenses do give good results too.. Anyone who can give me some comparisons between the sigma 24 - 70 and the 18 - 135 then? I am leaning towards the 18 - 135 at the meantime though..

Just curious, why the 18-135mm and not the 18-200mm instead? :think:

 

[renzokuken]

Just curious, why the 18-135mm and not the 18-200mm instead? :think:

though i am not the person you quoted
i though of that question before
18~200 have strong barrel distortion and CA according to dpreview
for me , i hope the shorter zoom range , will eliminate or at least REDUCE those problems

anyway i have no clue on 3rd party lenses
and for a $900 lens to score 7 in image quality as rated by dpreview, i won't think it will be a good buy for many

anyway just my 2cents :angel:

 

[renzokuken]

Check out the B&S corner, most people are selling it for $650. It will be difficult for you to find 2nd hand ones cos as I mention before, most will immediately sell it after getting their 7D. Good luck!

found one here
http://www.clubsnap.com/forums/showthread.php?t=582951
selling at $650 =.=
i might as well get a brand new one from MS Colour... they are selling around that price too

 

[Anson]

18~200 have strong barrel distortion and CA according to dpreview
for me , i hope the shorter zoom range , will eliminate or at least REDUCE those problems

The barrel distortion is obvious if you shoot at 18mm and having "straight lines" at the corner. I think till date only prime lens does not any barrel distortion (raw from camera), some manufacturer would correct it on camera or in RAW conversation.

You can use the setting from this site: http://www.kenrockwell.com/canon/lenses/18-200mm.htm to correct it relatively easily.

 

[TsQ]

in short, the 18-200mm isnt one that u want if overall PQ is on top of ur list... ofcos for many users, its good enough... but if u want something acceptable, it isnt a lens rated to do that...

like me, if u ask me... i cant really tell... unless the 18-135 is so much better that users can point it out.. then i might be more aware of its advantages..

 

[renzokuken]

The barrel distortion is obvious if you shoot at 18mm and having "straight lines" at the corner. I think till date only prime lens does not any barrel distortion (raw from camera), some manufacturer would correct it on camera or in RAW conversation.

You can use the setting from this site: http://www.kenrockwell.com/canon/lenses/18-200mm.htm to correct it relatively easily.

this is an OFF TOPIC POST

wow nice site!!
thanks alot man!!

but dpreview also covered this aspect in their review

" This type of software correction will also cause additional blurring of the corners, as these already none-too-sharp regions are stretched further in pursuit of geometric perfection."

http://www.dpreview.com/lensreviews/canon_18-200_3p5-5p6_is_c16/page3.asp

hmmmm $900 for such a lens... still a nono for me..
anyway thanks for providing me a new lens review database!!
i think we better dun talk about the 18~200 here ... if not really off topic le

 

[Anson]

but dpreview also covered this aspect in their review

hmmmm $900 for such a lens... still a nono for me..
anyway thanks for providing me a new lens review database!!

I am saying based on my experience with this lens. For the price you get what you paid for in this lens, for your info having owned a 70-200F2.8IS L the 18-200IS is still so far my fav Canon lens. :thumbsup:

 

[archlover]

i thought 15-85 supposed to be the newer version of 17-85...
how come the price is like double horrr...
>_<

 

[Anson]

i thought 15-85 supposed to be the newer version of 17-85...
how come the price is like double horrr...
>_<

it start at 15 instead of 17mm

 

[defn]

Just played with my friend's 18-135. All I can say is the build quality is SOLID. The zoom smoothness is definitely L grade to me. Whether it will still be in 10 months is another question.

 

[renzokuken]

i thought 15-85 supposed to be the newer version of 17-85...
how come the price is like double horrr...
>_<

don't have double la

RRP for 17~85 is 1199
RRP for 15~85 is 1369

i feel that it is only natural for it to be more expensive than 17~85 :nono:
since it is wider

 

[hetfieldpaul]

Like Usm said, its very subjective for ones preference

 

[Anson]

don't have double la

RRP for 17~85 is 1199
RRP for 15~85 is 1369

i feel that it is only natural for it to be more expensive than 17~85 :nono:
since it is wider

Also not to forget the 17-85 start at F4 while 15-85 start at F3.5, to most it may seem unimportant. But remember how much people are pay for F2.8 compared to F3.5? If you do, den you would know the diff. :bsmilie:

 

[renzokuken]

Also not to forget the 17-85 start at F4 while 15-85 start at F3.5, to most it may seem unimportant. But remember how much people are pay for F2.8 compared to F3.5? If you do, den you would know the diff. :bsmilie:

i know the diff
tell that to archlover
i've already said i think the 15~85 should be more expensive :what:

 

[Anson]

i know the diff
tell that to archlover
i've already said i think the 15~85 should be more expensive :what:

Bro I am speaking in general, not referring to anyone. :embrass:

 

[renzokuken]

Bro I am speaking in general, not referring to anyone. :embrass:

sorry was in a bad mood :sweat:

 

[kiwitan]

don't have double la

RRP for 17~85 is 1199
RRP for 15~85 is 1369

i feel that it is only natural for it to be more expensive than 17~85 :nono:
since it is wider

was quota $900 for EFS 17-85 IS by cathay photo, i walked into TCW and was quota $550. Both has come with warranty. Why the price differences by so gread?

 

[renzokuken]

was quota $900 for EFS 17-85 IS by cathay photo, i walked into TCW and was quota $550. Both has come with warranty. Why the price differences by so gread?

Cathay is known for charging alittle more ex
but yes, the price difference is too great..


why?
some shops would reckon that the shoppers are not aware of the existence of the 15~85, or it being the 17~85 replacement, but of course , they are wrong

but believe me, when 15~85 is officially in stores here
cathay will definitely drop the price of 17~85 to clear stocks

it is common cents for a trader , or a business man , to stretch the value of the product , until it got replaced
moreover TCW sells 2nd hand lens.. no?

of course the above is my personal guess
if you really wanna know, why not ask them yourself?

 

[renzokuken]

regarding 18~135 IQ
go and have a look here

http://www.the-digital-picture.com/...p=455&CameraComp=474&SampleComp=0&FLI=1&API=2

from the lab shots
the IQ of 18~135 is really horrendous, 18~55 performed better as a whole as compared to it
and when compare further
it even lost to 18~200

go try it yourself!! (remember to adjust the aperture for them to be the same for fair comparison)
disappointment

 

[Zoomster]

17-55mm has 19 elements in 12 groups inc. 3x aspherical and 2x UD elements

17-85mm has 17 elements in 12 groups inc. 1x aspherical element

15-85mm has 17 elements/12 groups aspherical elements (#??) and 1x UD element

Compared with maybe the sharpest zoom lens in Canon's arsenal ie. 70-200mm f/4 IS L, which has 1 flourite glass and 2 UD lens.

I am just a novice here in the technical aspects, but I do believe the UD lens play a big role in improving lens. (Of course other things also do come into play. UD is not the be all and end all of sharpness). As such, in theory, the 15-85mm does appear to be well-endowed with the right elements to make it better than the 17-85mm.