Canon 30D - DPChallenge Forums

Canon EF 70-200mm f/2.8L IS USM

01/12/2006 12:16:06 PM · #76

I really doubt it would reduce the sale of the f/2.8 lenses.

If I could use a reasonable quality ISO 6400 /ISo 12800 rating. The f/2.8 70-200mm IS lense would still have the advantage of great clarity and sharpness and bokeh.

In fact, if it'd hurt the sale of anything it might be "flashes" but even then you still need those for fill in.

hankk

Sigma 24-70mm f/2.8 EX Aspherical DF for Canon

01/12/2006 01:39:17 PM · #77

Originally posted by theSaj:

Don't get me wrong; I still "need" the 70-200 f/2.8 IS :-)
But the EF 70-300mm f/4-5.6 IS USM on an ISO 6400 sensor should give you the same speed as an f/1.4-2.8 on a ISO 1600 sensor.

While MTF isn't everything, it is one of the things that can be measured, and does at least hint at the sharpness of the lens. Comparing the EF 70-300mm f/4-5.6 IS USM to the 70-200 f/2.8 IS, the MTF charts seem to be very close. Am I missing something?
Other than aperature and build quality (and waterproofing) what does that 70-200 have that the 70-300 lacks? (Or should we start a rumor that Canon will upgrate the 70-200 to something better?)

Bear_Music

Samsung Galaxy S24 Ultra

Sony 24-70mm F4 Vario-Tessar T* FE OSS

01/12/2006 02:26:16 PM · #78

Originally posted by hankk:

Originally posted by theSaj:
I really doubt it would reduce the sale of the f/2.8 lenses.

If I could use a reasonable quality ISO 6400 /ISo 12800 rating. The f/2.8 70-200mm IS lense would still have the advantage of great clarity and sharpness and bokeh.

In fact, if it'd hurt the sale of anything it might be "flashes" but even then you still need those for fill in.

Don't get me wrong; I still "need" the 70-200 f/2.8 IS :-)
But the EF 70-300mm f/4-5.6 IS USM on an ISO 6400 sensor should give you the same speed as an f/1.4-2.8 on a ISO 1600 sensor.

While MTF isn't everything, it is one of the things that can be measured, and does at least hint at the sharpness of the lens. Comparing the EF 70-300mm f/4-5.6 IS USM to the 70-200 f/2.8 IS, the MTF charts seem to be very close. Am I missing something?
Other than aperature and build quality (and waterproofing) what does that 70-200 have that the 70-300 lacks? (Or should we start a rumor that Canon will upgrate the 70-200 to something better?)

It's white and it's LONG; 'nuf said :-)

R.

theSaj

Canon EF 70-200mm f/2.8L IS USM

01/12/2006 03:11:31 PM · #79

Originally posted by hankk:

Other than aperature and build quality (and waterproofing) what does that 70-200 have that the 70-300 lacks?

Compensation value...

:P

zerocusa

Canon EOS-1D Mark II

Canon EF 24-70mm f/2.8L USM

01/16/2006 07:51:25 AM · #80

Prof_Fate

01/16/2006 08:46:23 AM · #81

Originally posted by hankk:

Comparing the EF 70-300mm f/4-5.6 IS USM to the 70-200 f/2.8 IS, the MTF charts seem to be very close. Am I missing something?
Other than aperature and build quality (and waterproofing) what does that 70-200 have that the 70-300 lacks? (Or should we start a rumor that Canon will upgrate the 70-200 to something better?)

Try the 70-200 and you';; see you're missing a lot compared to the 70-300.
I recently moved from a 70-300 sigma to a 70-210 2.8 tamron and after useing the tamron a few times...there are lots of differences in actual use.
Bokeh/DOF on a 2.8 lens is LOTS better than a 4-5.6.
on cameras above a rebel, a 2.8 lens is recognized by the camera's circuitry and extra focusing sensors are activated increasing the speed and accurace of focus.
if both are IS lenses, the 2.8 will ALWAYS be better in lower light. handholding 3 stops below the 1/focal length will still mean lower iso or more f stop (for a sharper pic) at a given EV.
you can use a teleconverter on the 2.8 lens, even a 2.0 one getting you a 400mm 5.6 max, a full 100mm more than the 70-300 (which cannot use a TC becuse the lens is too slow)
IS will not do anything for moving subjects, but 2.8 will allow a faster shutter speed.

hankk

Sigma 24-70mm f/2.8 EX Aspherical DF for Canon

01/16/2006 03:01:53 PM · #82

Originally posted by theSaj:

Originally posted by hankk:

Other than aperature and build quality (and waterproofing) what does that 70-200 have that the 70-300 lacks?

Compensation value...

:P

Good point. Does Canon make anything bigger than the 1200mm? :-)

kyebosh

Canon EF 80-200mm f/2.8L

01/16/2006 03:16:43 PM · #83

Sure they do, they make copiers and things :-)

hankk

Sigma 24-70mm f/2.8 EX Aspherical DF for Canon

01/16/2006 09:53:16 PM · #84

See the discussion at
//forums.dpreview.com/forums/read.asp?forum=1019&message=16734939 that goes along with this picture

Originally posted by zerocusa:

MadMan2k

Sony Alpha a6400

Tamron 70-180mm F/2.8 Di III VXD

01/16/2006 11:59:07 PM · #85

Very cool. Wonder if that's a 70-200 4.0L IS in the back? If so, I'd love to have both of those

art-inept

Olympus C-5060WZ

Canon EF 35mm f/2.0

01/17/2006 12:09:09 AM · #86

i think the 20D replacement will come out with a sensor cleaning thing like oly's supersonic wave filter

yido

Sigma 20mm f/1.8 EX Aspherical DG DF RF for Canon

01/17/2006 12:35:15 AM · #87

Lots of talk at dpreview about the camera appearing bigger (to accomodate a bigger sensor?).

Ha ha, the speculations continue...

Bear_Music

Samsung Galaxy S24 Ultra

Sony 24-70mm F4 Vario-Tessar T* FE OSS

01/17/2006 01:38:57 AM · #88

The illustrated camera IS wider on the left than a 20D, by about a finger's width it looks like, maybe a bit less. The curve under the overhanging pentaprism is smoother as well.

R.

goc

Apple iPhone 4

01/17/2006 04:46:51 AM · #89

boy , i love this rumors and speculations ...
do you ?

01/17/2006 05:20:03 AM · #90

As you all know we in Korea are second only to China when it comes to the steal and copy whatever the rest of the world develops. Well, on the 300DNMC, not 30D btw, we are now faking a graphite body that works much like a male organ... it is very small, fits in your pocket but when you take it out, rub it a bit it grows to full size. Then it is quite potent with self-cleaning, telescopic extending lens capacity and best of all the ability to take pics of cloned cells. We call it the supreme camera.

Message edited by author 2006-01-17 05:23:35.

ergo

01/17/2006 05:37:57 AM · #91

Originally posted by gibun:

And what of the HOOD?

Canon EF 70-200mm f/2.8L USM

01/17/2006 05:45:47 AM · #92

hoods are removed by spiritual leaders after the 3rd day of manufacture.

sajin

Canon EOS-350D Rebel XT

01/17/2006 05:58:03 AM · #93

ja boet..your imagination sometimes blows me away...this is a mixture of photographic R&D, aladin, micro-biology and penile erection function...or is that disfunction and rites of passage...love your humour!

Message edited by author 2006-01-17 05:58:47.

ergo

01/17/2006 06:06:56 AM · #94

Originally posted by gibun:

hoods are removed by spiritual leaders after the 3rd day of manufacture.

Special batteries? Small and blue color?

01/17/2006 06:14:26 AM · #95

just out... can not be used on DPC... I repeat... can not be used on DPC. DNMC DNMC DNMC.

Powered by enriched plotonium imported from Iraq... or is that Iran, well does not matter, there are many of us who will never get charged again..

Canon EF 24-70mm f/2.8L USM

01/17/2006 06:17:17 AM · #96

Sorry must add the DNMC is for the Korean virgin, the Japanese virgin will still ba acceptable as it will not fake the big shots.

ergo

01/17/2006 06:24:07 AM · #97

Originally posted by gibun:

Of course it matters. We've screwed up Iraq, and we've yet to screw up Iran, although of course we're trying our damndest to do it.

Sorry, sorry...I take it back. This is quite a thread-jack...

Message edited by author 2006-01-17 06:24:32.

Simms

Canon EOS-5D Mark II

01/17/2006 07:12:14 AM · #98

Originally posted by hankk:

See the discussion at
//forums.dpreview.com/forums/read.asp?forum=1019&message=16734939 that goes along with this picture

Originally posted by zerocusa:

Is anyone sure this isnt a 20D? Certainly looks `kinda` like one to me..

theSaj