.../2.8 to focus much more quickly in typical indoor light than the 100-400 can . Also , 400mm reach is really overkill indoors unless you have some extr... Re : Canon telezooms IQ : 100-400 , 70-200IS and nonIS

...ours to see where it 's sharpest at . My 400L was pin sharp at wide open , f/5.6 , but 6.3 and 7.1 were absolutely unusable . Then it got better at f/... Re : are " sweet spots " just opinion , or fact ?

...tack sharp wide open so putting a TC on it does not degrade the image quality by anything really noticeable ..it is also very fast AF so agian the TC ... Re : 100-400 and 500 with 1.4 extender

... 400 , with the f5.6 shutter speed is necessary , I 'll go to ISO 800 or more if necessary AV set at f5.6 , the 400mm L is sharp wide open , AF A1 Ser... Re : Bird Photos

You definitely want to stop down with the 100-400 @ 400mm , it 's quite soft wide open . Re : How can I get better clarity with my 400D

...cs to the 100-400L and it 's bad behaviour in this regard was the main reason I switched to the 400 f/5.6L with it 's excellent smooth bokeh rendition... Re : Here 's the straight poop from Canon .. .

... must not be any good so no one buys it , but then when I questioned that theory I got a mouth full from 400mm f5.6 users that it is a great bird lens... Re : -= Archive Canon EF 400mm f/5.6

...n . 400mm is minimum and even then you wo n't get much in the way of decent bird pictures . The 50-500mm Sigma is a good choice if you 're travelling ... Re : Good Zoom Telephoto lens for Wildlife photography

... and it the best bird lens out there . The prime will always give you better results than the zoom , the question you need to ask yourself is do you n... Re : 100-400mm or 400mm ?

...get too much out of a lens that was n't meant for the end result you desire . The 400L is a great bird lens , but even with the long reach , you 'll s... Re : New guy getting FRUSTRATED with 40D pic results .. .

...very handy for very shy bugs like dragonflies and compressed perspective shots of flowers , the 300 f2.8L IS would too much of a handfull for that , t... Re : 135 L f/2.0 or 300 L IS f/4.0 ?

...add catch-lights to the eyes . By the way - besides wildlife ; the 400mm f/5.6L is a great sports lens . Many photographers overlook this lens for spo... Re : New 400 5.6L duck shot ........ .

...ck-lit and get a nice portrait . By the way - besides wildlife ; the 400mm f/5.6L is a great sports lens . Many photographers overlook this lens for s... Re : New 400 5.6L duck shot ........ .

... IS so if it is little bit close to 400 f5.6 its still with IS , so you can find a way to have long prime with IS and do great soccer shots . By the w... Re : does this make sense to do . ... .

...n a 20D ) sometimes for sailing races . It is also nice to has 400mm for wildlife photos . One nice thing , is that , with canon 's 2x extender the ce... tele converter .

...F5.6 L, both of which are great wildlife lenses . The 70-200 is a bit short for general wildlife but it apparantly takes a 1.4 teleconverter quite wel... First time buyer ... .

...very good pictures at 400mm , fabulous for wildlife . The converter loses a couple of stops they say ( I have n't got either this lens or the converte... Lens Confusion

...ibilities . One further thing is do n't forget you need at least 400mm , so do n't consider anything less even it is seems a good lens or a good price... Re : Suggestions for Birding

...x TC works ( I use one ) but it 's not a huge gain in reach . The next best at a reasonable price , I think , would be a 400mm 5.6 L, but that 's twic... Re : Reaching 300 +

...ments , if I did not have and be willing to use three DSLR bodies and if I was not able to get the 300mm and 400mm primes at such a great price - I wo... I have the 70-200mm f/4L IS , 300mm f/4LIS and 400mm f/5.6L

...s . Second reason is that I got the 400mm prime at such a darn good price from someone whom I could trust , that I could n't resist that buy . Third r... I opted for the 400mm f/5.6L

... even though they 're closer to you than the raptor would be ) . If the $ 550 is a firm limit , I think this is the best quality solution at that pric... which lens would you get ?

... minimum focus distance is horrible so if a bird gets close to you , you are pretty much out of luck . other than that , i will say that it is the bes... Re : Opinions on the Canon 400mm f/5.6L , please .. .

...s you feel any better I started with the 400 5.6L as my first "big " white and the image quality compares extremely favorably to it 's big brothers . ... Re : 400 f5.6L availability ?

... actually the exact reason I 'm looking at the 400 f/5.6 , its IQ is great , but it 's the AF that 's really , really impressive . All the BIF shooter... Re : New member ( which DSLR ? )

...bad image quality for someone who already own a 400mm F5.6 L . one would get much better results but putting a 1.4x or even a 2x on the 400mm lens tha... Re : Why no reasonably priced 500mm lens ?

...ies body , tho lately i have been developing an aversion to TCs in general and i 've found with 400mm and a camera that renders superior IQ more reach... Re : Sigma 's new lenses ...Bravo !

...loved the image quality and the extremely fast focus of the 400mm f/5.6 lens . What I did not like about this lens was that I could never really get s... I am in the same confusion .. .

... weight of the 400mm f/5.6 makes for easy hand-holding over long periods , and the balance is n't bad because at only f/5.6 there is n't that big , he... Canon 300 f4 IS vs. Canon 400 f5.6

...clusively . I prefer the lighter weight , faster AF , and superior sharpness . My zoom seems to be one of those examples of Canon 's variable build qu... 100-400mm is or 400mm

it is very sharp and works great in available light . the weight is attractive and will not tire you out . ... 400mm Re : 400mm f5.6 ?

...The beautiful thing about the 400 F5.6 is its weight ...one of the best lenses around for inflight avian photography . You really do n't need IS for a... Re : It would of been nice

...l admit that most of my pics are at 400mm but the flexibility of the zoom is nice . The IQ is also nothing short of outstanding ...maybe not quite as ... Re : 100-400mm vs 400mm

... trilemma as you actually . I already own a 1.4x T-con , so the 300L is appealing , but its IQ with a 1.4x is supposedly worse than the 1-4 at 400mm ,... Re : Birders what lens do i need ?300L 400L 1-400L ? ?

....8 , it is better , but does n't make the 2.8 look poor by any means . If you want quality @ 400mm I 'm not convinced a 2x converter is the best bet .... Re : For those who sold 70-200 F4 IS to get 70-200 F2.8 IS - I want to hear from you !

.. . at 400mm the zoom is better . ed rader 70-300is to a 100-400is L

What I would like to know is which one will yield me the sharpest images at the long end . @ 400mm the zoom is better . i 've owned both . Re : 300mm F4 + 1.4 tc or 100-400

...g the focal length down to 350mm makes that small softness disappear , but my copy produces marketably sharp images even wide open at full focal lengt... Buying a super telephoto zoom soon .Opinions welcome .Suggestions Needed .

For just about full proof shooting , 2x focal length works good for handholding . 400mm x 1.4 = 560mm so 1/1000th . ... 400mm Re : 400mm F5.6

...ou ca n't . No, I have no bird shots of my 300L alone because that focal length is n't long enough for bird photography . While the zoom lens believer... Re : Canon 100-400L or 400L prime

...s even under bad light conditions . - the Image Stabilizer is worth the money , especcially at 400mm ! ! - and the color adjustment with the other " L... Re : Lens Help

... image stabilization works beautifully ; I 've taken handheld shots at 400mm with a shutter speed of 1/100 - try THAT with an unstabilized lens ! AF i... Great alternative to the Canon 100-400IS , and just a great lens to have

...used wide open with no resultant decrease in IQ and its instantaneous autofocus capability allows some pretty nice captures ; especially of racing typ... Re : New 400 5.6L duck shot ........ .

... autofocus of the 400mm f/5.6L is extremely fast and accurate ( but I have not compared this side by side with a 100-400mm regarding focus speed ) . I... Re : Which zoom lens for wildlife/bird photography ?

...ity , no lens with extenders will match it at 400mm . Your 70-300 could use a 1.4x at a pinch , but it does not work well , autofocus becomes slow and... What ef 400mm

...The likely problem is that your camera 's auto-focus system cannot focus at f/8 , without increasing the amount of available light . Preventing the Ex... 400 f/5.6

...ossibly no good autofocus with your 450D/40D , even with a non-reporting teleconverter . Yes , it is very good for birding with a high pixel density c... Re : Question on the 400L 5.6 and converters .. .

... the APO Macro is considered the best and some say on par with the Canon 400 f/5.6 L. Unfortunately , Sigma no longer has parts to re-chip them and so... Re : sigma 400mm 5.6

Hung , marvelous macro shot with the 400mm . I 'm amazed with the dof . Wasp

...To be honest stick both on a tripod at f8.0 in good conditions then I doubt most would see a difference assuming decent copies . Shame in reality not ... Re : hey bird guys/gals 400mm 5.6 L lens

...ok this lens for sports because of its relatively slow f/5.6 . However , this lens can be used wide open with no resultant decrease in IQ and its inst... Re : New 400 5.6L duck shot ........ .

... F4 IS is great handheld and on monopod , but is not designed for use with tripod - can go beserk ! Newer IS 's ( 70-200 F2.8 for example ) are fine o...