need more information on sony super telephoto zoom

dctrkaushik

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May I know focal length range for maximum Aperature F/4.0 in SAL-70400 G. I hope it is from 70mm- 200mm .

Just for additional 100 mm of focal length , this lens is nearly three times heavier than SAL75300 and double heavy than SAL-70-300 G .Does that account for any additional unique feature ? Do you think at 300mm of focal length , SAL-70-400G would perform better than SAL-70-300G ?

Will greatly appreciate your response.
Regards ,
Kaushik
 
Somebody posted this (here and/or on dyxum) earlier:

70mm-85mm: F/4.0
85mm-150mm: F/4.5
150mm-250mm: F/5.0
250mm-400mm: F/5.6

So, not so much range for f4.
 
70300g is meant to distort on FF, wait for FF testing before you buy. 70400g is a better performer, but i'd expect that at the price...

Shame about the F4.0 longevity. would have hoped it'd at least go as far as 150mm.
 
thanks for the information. I think 70mm-85mm at F/4 could be useful for portrait shots ! Sometimes opportunity is offered to take close shot of big cats...and I guess F/4 would be great for that.
 
70300g is meant to distort on FF, wait for FF testing before you buy.
70400g is a better performer, but i'd expect that at the price...
300mm is not 400mm in any case. Different purpose lenses. Although on FF the 400mm is sure going to seem like a 300mm for those who have been using APS.
Shame about the F4.0 longevity. would have hoped it'd at least go as
far as 150mm.
The lens weighs a lot. How much more would you like it to weigh? That's the tradeoff, or at least one of them, more aperture means more weight. And it goes up fast. I have a 400mm f4, handholding is 15minutes tops and my arms are dead.

Walt
 
The lens weighs a lot. How much more would you like it to weigh?
That's the tradeoff, or at least one of them, more aperture means
more weight. And it goes up fast. I have a 400mm f4, handholding is
15minutes tops and my arms are dead.
I agree with that Walt!

I have a sigma 100-300 F4 which is 1.4kg, and a minolta 400mm F4.5 which is 2kg. Personally, I can handhold the sigma, but the minolta is just too heavy and much more cumbersome to carry around -- but I love those extra 100mm :-)

a700 + minolta 400mm, (last week in Yellowstone)

 
Brett you are absolutely right . It seems that this 70-400mm lens would be better than Canon 100-400 mm and Nikon 80-400mm. Even for a short focal length range of 70-85 mm the F/4.0 would be great.
 
Vivec nice shot indeed. What was the distance between camera and the
subject ?
Well, I think about 20-30 yards. Took a while to slowly approach him: here is the picture of me in action :-)



(I wrapped the white minolta hood in black stuff to make it less scary to animals, tripod was very necessary due to the wind and I used 2-sec shutter (for mirror lockup) with a wired remote trigger.

btw. note that I took it at F5, so in theory, the new sony lens should definitely be capable to taking the same shot -- only drawback is manual focus with a TC)
 
I took some pronghorn pictures about a dozen years ago in the Silver Creek hills in San Jose using a Minolta 400SI and Sigma 500mm f7.2. It surprised me how comfortable they can be when you're 20 yards off. I guess they know they can outrun anything on the continent.

By the way, nice shot.
 
I took some pronghorn pictures about a dozen years ago in the Silver
Creek hills in San Jose using a Minolta 400SI and Sigma 500mm f7.2.
It surprised me how comfortable they can be when you're 20 yards off.
I guess they know they can outrun anything on the continent.
Yes, I didn't want to get any closer as not to disturb him.

However, I think the real (and sad) reason why they let you come close is that there is no hunting allowed in Yellowstone -- I heard that once animals get hunted they quickly learn to avoid humans! (that's why it is very hard to see Moose for example in Alaska (can you say Sarah Palin ;-) ), while they are reasonably easy to see in Yellowstone or the Grand Tetons)
 
Yeah, now that I look at the picture, I also think it is more like 40 yards -- amazing how close a 400mm lens brings you!
 

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