Canon EF 600mm DO BR prototype at EXPO 2015
- Thread starter Meatcurry
- Start date
Good job! Thank you PBD.
privatebydesign said:
And as the thick barrel of the lens front could melt down in production that should be equal.privatebydesign said:
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If this beats a 300mm with 2x extender for IQ and with a faster aperture and reduction in weight/dimensions, I would buy it for $30k!!
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Hope Canon thinks about to add an internal extender 1.4x like on the 200-400 EXT. If this adds approx 3cm additional lengh and approx 200 gramms to the lens design - still game changer. If pricing could be competative it would really take it to the next level - not a niche product but a starting a new era for wildlife shooters.
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Agree! A 600 f4 DO, with built in 1.4x extender and IQ in line with the 400 DO II, would be awesome. However, the expected pricetag, whatever that will be, will keep it out of reach for most people ...Silverman said:
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looking at the straight on side picture you can see the mock up has the same tripod foot as the current 600. the 2 notches measure 1.5 cm on my screen. the overall length of the lens on screen is 14 cm. 14/1.5=9.33. the actual measurement between the notches is 1 3/8" on the 600ii.
1.325" x 9.33=12.36" that fits in with what i would expect the length of the production lens to be. i don't think you should use the working lens on the camera for reference because it doesn't have a lot of the components that the production lens will have so its a bit shorter.
1.325" x 9.33=12.36" that fits in with what i would expect the length of the production lens to be. i don't think you should use the working lens on the camera for reference because it doesn't have a lot of the components that the production lens will have so its a bit shorter.
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wtlloyd said:
@Tiggy - but that is the price of the current f/4 II so unless Canon is planning to stop making it ? What would be interesting is if it is cheaper for them to make (less elements maybe?) and they sell it to indeed replace the current lens (woe is me, lol).
Still, where Canon is being sensible is to promote their lenses and continue to invest in lenses. Definitely helps differentiate them from other brands.... Will be interesting if Sony are continuing to develop their AF compatibility so that next gen will be even faster...
I personally don't see the new lens having a 1.4x inside. It's a great idea, but they didnt do it on the 400mm MK II, so this is again perhaps a case of Canon dont feel the need to competition wise (the 200-400 already existed as a Nikon lens).
I also wonder, $ for $, how much Canon make from their lenses vs their bodies, and whether therefore they are focusing more R&D into lenses to ensure they keep revenues and profits up.
Interesting times.
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The do optics are apparently difficult and expensive to produce. If the current 600ii stays in production then it will be the $10000.00 budget friendly alternative the $14000.00 do lens.
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candc said:
Once the optic design is fixed, the distances between lenses and the focal plane can't be changed (but the focusing adjustment, of course, which in these lenses is internal anyway). So if the lens is a prototype of the final design, the barrel can become leaner, but the front lens to the mount distance will be the same. The design of the barrel around the front lens may make it a little longer, but not much.
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A little surprising to me if Canon releases a direct competitor to the 600II which is only 4ish years old. If this turns into a production 600 f4 DO with BR that gives equal-ish IQ and it cuts the size/weight, a lot of us with the 600II might jump. If it has a built-in 1.4X, I'm sold at any price south of $20K. I love the 600II, use it 70% of the time with the 1.4XIII for birdies but would do a lot more walking with it if it lost a couple of lbs. Built-in 1.4X would be ideal for wildlife where the perfect shot & framing is fleeting even if this compromised the weight loss a bit. I would have bet on an update to the 800 which the 600II + 1.4X obsoleted in 2011 or a 600 DO/BR 5.6 which would be differentiated. But, what do I know? Nice to see so many innovative designs.
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candc said:
They are currently difficult and expensive to produce, but we are looking at this technology in it's infancy. It is a safe bet that production techniques will improve and that the cost per unit will fall. These are exciting times for lens design!
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Don Haines said:
Truenuff. Its been a real problem getting the 400doii. Apparently matching the 2 halves of the element is super tedious. The lens has been in production for almost a year now and there have been less than a hundred made afaik. I don't know if that's the best they can do at the moment or if there is some other reason for not producing more?
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