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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 30 April 2019 at 15:55
I find the 70-400 okay for handholding. YMMV.
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QuietOC View Drop Down
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 30 April 2019 at 17:54
Originally posted by beccles beccles wrote:

...but i'm guessing that though the 70-400 is apparently sharper than the 70-300, as evidenced by the pics on the comparison...

Are you buying this lens from Kurt Munger?
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beccles View Drop Down
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Post Options Post Options   Quote beccles Quote  Post ReplyReply Direct Link To This Post Posted: 30 April 2019 at 17:57
not when there's one at ffordes for 699 :-)
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 30 April 2019 at 18:10
Originally posted by beccles beccles wrote:

not when there's one at ffordes for 699 :-)

There is no evidence that that one is sharper than your Tamron. I certainly wouldn't bet on it.

Are you unhappy with your Tamron? It took me a few tries to find a really sharp copy of the Tamron. I expect there are better copies of the 70-400G too.

Edited by QuietOC - 30 April 2019 at 18:15
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Post Options Post Options   Quote beccles Quote  Post ReplyReply Direct Link To This Post Posted: 30 April 2019 at 18:15
it's not sharpness problem, just sometimes wish i had a little extra reach
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 30 April 2019 at 18:23
Originally posted by beccles beccles wrote:

it's not sharpness problem, just sometimes wish i had a little extra reach

I would like a 600+ mm lens sharper than my 55-300 on a 2X teleconverter.

My 55-300 has been sharper than all the larger, heavy lenses I've tried so far.

Edited by QuietOC - 30 April 2019 at 18:29
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 13:56
Originally posted by beccles beccles wrote:

thanks for that.. but i'm guessing that though the 70-400 is apparently sharper than the 70-300, as evidenced by the pics on the comparison, at 400mm hand held it quite possibly wouldn't be?

The effect of motion blur (subject or camera/lens) is quite different from lens softness and rather less pleasant. How much you get depends on shutter speed and your ability to support the lens still. How much is acceptable depends on cropping and viewing.
I've had some success hand-holding holding 400mm primes at low shutter speeds with IBIS. I did a few tests and shared the results here a while ago. The bottom line is that with IBIS and a steady hand, you can get sharp pics well below the usual 1/FL shutter speed, but the slower you go the lower the proportion that will be usable. I got occasional usable shots down to 1/20 second and at 1/250 most were usable at their full size (which wasn't the case with IBIS off).
Paradoxically, it can (sometimes) be easier to hold a long lens still than a short one because of the higher inertia, but that assumes you can hold the weight without your muscles spasming or tiring. In rifle shooting I used to use a sling, and a DIY arrangement can help with long lenses, or using a monopod (or loose tripod if you're lying down).


Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 15:32
Originally posted by QuietOC QuietOC wrote:

Originally posted by beccles beccles wrote:

not when there's one at ffordes for 699 :-)

There is no evidence that that one is sharper than your Tamron. I certainly wouldn't bet on it.

Are you unhappy with your Tamron? It took me a few tries to find a really sharp copy of the Tamron. I expect there are better copies of the 70-400G too.
Why do you hate 70-400G? It isn't flawless, but it is a really good lens.
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Post Options Post Options   Quote beccles Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 15:38
hate 70-400G ?? eh??

am happy with the tamron mostly, but sometimes would like a bit more reach

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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 16:04
I can believe there are better copies, but I didn't like using the 70-400G. I don't miss the Sony 70-300G SSM II or Tamron 70-300 USD either, but I would use either of those instead of the 70-400G. It is not much to crop 300 mm to match 400 mm.

Edited by QuietOC - 01 May 2019 at 16:24
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Post Options Post Options   Quote C_N_RED_AGAIN Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2019 at 16:40
I had a really good copy of the 70-400 that needed no micro adjustment at any focal length. After using the fe 100-400 thier not even in the same ballpark as the fe version is significantly better at everything. Iím with quite oc in that I was never a huge fan of the 70-400
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2019 at 06:28
I agree. I never owned the 70-400 but took test shots with one s/h and was impressed by the sharpness and general image quality even at 400mm.
But I found I didn't like using lenses of this size (or the Bigma) because they were too much hassle to carry around and too heavy to use in the casual way I work/play. If you're a serious wildlife or sports shooter then you will bite that bullet and go for the best you can afford. I'm not, and I wasn't.

I have maybe a dozen lenses of 300-500mm FL including MF primes and AF zooms and if I'm birding I will use the Sony 55-300mm or the 100-300mm APO, if I'm out for the day I'll use the 18-250, and if I want a casual long-lens capability without taking the 18-250 I might put one of the mirror lenses (eg Kenko 400mm) in the bag, which are small and light. Interestingly my sharpest Moon shots have all been with the Tamron adaptall 500mm mirror lens but MF-ing it with a TC on it is not trivial

Edited by Miranda F - 02 May 2019 at 06:32
Miranda F & Sensorex, Sony A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2019 at 06:48
Originally posted by QuietOC QuietOC wrote:

I can believe there are better copies, but I didn't like using the 70-400G. I don't miss the Sony 70-300G SSM II or Tamron 70-300 USD either, but I would use either of those instead of the 70-400G. It is not much to crop 300 mm to match 400 mm.
But why do you prefer those lenses? The size? Cropping from 300mm to 400mm is not much, but a 400mm you could with better results crop to 600mm.
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