A 70-400mm sample for you
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A 70-400mm sample for you
Although this lens was clearly marked NOT TO BE USED, I feel that this shot - the kind of picture I would never have taken without the extreme clarity of the A900 viewfinder showing the subject almost as an art-form - is worth sharing. The water of the puddle on the old streets of Edinburgh, outside the conference room, picks up the pattern from the breeze and the light from between the houses, and somehow it inverts the water so it appears like a pool of oil or mercury standing on the cobble setts.
http://www.pbase.com/davidkilpatrick/image/103320505 for the full size file
Depth of field is of course limited at f6.3 and 210mm - just half a stop down I think - but the point of focus, with the small blades of grass at the top of puddle, is fine. This is processed using ACR 4.6 Beta. The body was a pre-production model as well as the lens. The firmware is definitely not final, as it consistently reported the 50mm f1.4 lens as having a maximum aperture of f4.5 and it also reported some other wrong focal lengths (but most lens data was correctly received).
David
http://www.pbase.com/davidkilpatrick/image/103320505 for the full size file
Depth of field is of course limited at f6.3 and 210mm - just half a stop down I think - but the point of focus, with the small blades of grass at the top of puddle, is fine. This is processed using ACR 4.6 Beta. The body was a pre-production model as well as the lens. The firmware is definitely not final, as it consistently reported the 50mm f1.4 lens as having a maximum aperture of f4.5 and it also reported some other wrong focal lengths (but most lens data was correctly received).
David
Re: A 70-400mm sample for you
Do you have or have access to a Minolta AF 100-400mm F/4.5-6.7 to compare it to?
I am partucularly interested in nearly, in-focus bokeh. the 100-400 is terrible at this. Double images all over the place. Far bokeh is fine.
I am partucularly interested in nearly, in-focus bokeh. the 100-400 is terrible at this. Double images all over the place. Far bokeh is fine.
Winston Mitchell
KM7D, A700, A77, A77M2, A7M3
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Re: A 70-400mm sample for you
actually it looks like ice. I'd be thinking that I was going to haveto dig up those cobbles and reset them in the spring if I saw that scene around here. When the piture came up I saw it before I read the text and I though man that 400mm can see someplace cold from there. or man it got a lot colder there than I thought it did
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Re: A 70-400mm sample for you
I don't, but this was medium distance, and the bokeh seems smooth enough. Also, I won't have access to the 70-400mm for another six months - when they release the final version.Winston wrote:Do you have or have access to a Minolta AF 100-400mm F/4.5-6.7 to compare it to?
I am partucularly interested in nearly, in-focus bokeh. the 100-400 is terrible at this. Double images all over the place. Far bokeh is fine.
David
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Re: A 70-400mm sample for you
Actually rather surprising depth from FF at that distance and focul length (210mm) and f/stop, (assuming standing and aiming down at about 35-40deg.) good density and clarity as well. That water puddle looks like there might be an oil/diesel component involved...car deposits maybe, it seems too have a rolled edge in places. Couldn't find the blades of grass though. what ISO was it, 200, 400.
Greg
Greg
Re: A 70-400mm sample for you
Thanks David
There is an amazing amount of detail there! Blades of grass...and even detail of surface tension reflections that the water creates round the cobbles...
For Pre-Production and NOT TO BE USED warnings... thats impressive!
Iso 200 I believe.
There is an amazing amount of detail there! Blades of grass...and even detail of surface tension reflections that the water creates round the cobbles...
For Pre-Production and NOT TO BE USED warnings... thats impressive!
Iso 200 I believe.
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Re: A 70-400mm sample for you
1/400th at f6.3, -0.3 over-ride, ISO 200Greg Beetham wrote:Actually rather surprising depth from FF at that distance and focul length (210mm) and f/stop, (assuming standing and aiming down at about 35-40deg.) good density and clarity as well. That water puddle looks like there might be an oil/diesel component involved...car deposits maybe, it seems too have a rolled edge in places. Couldn't find the blades of grass though. what ISO was it, 200, 400.
Greg
David
Re: A 70-400mm sample for you
Still hoping for a faster zoom from Sony (or anyone actually) for decent sports use at 300 or more. I think Sigma do a 2.8 @ 70-300 for Canon fit but nothing on Sony. Boo.
This looks like it might be a handy little purchase though. I feel nervous every time I use my Bigma at the moment, expecting the screw to strip and turn it into an expensive paperweight.
This looks like it might be a handy little purchase though. I feel nervous every time I use my Bigma at the moment, expecting the screw to strip and turn it into an expensive paperweight.
Re: A 70-400mm sample for you
I like the art you captured in this photo David, especially the surface-tension-driven irregular edges of water contrasting with the orthogonal hardness of the cobble stones is good enough for a photo exhibition collection.
And thanks for letting us know what this acclaimed lens can be up to with the A900.
I hope your trip to Photokina will bring us more intriguing news from the development departments of all brands and definitely from Sony.
Have nice working and pleasure trip,
Yildiz
And thanks for letting us know what this acclaimed lens can be up to with the A900.
I hope your trip to Photokina will bring us more intriguing news from the development departments of all brands and definitely from Sony.
Have nice working and pleasure trip,
Yildiz
Re: A 70-400mm sample for you
David,
There has been some discussion on some other boards about this being internal focus, but others stating that it isn't. What did you find?
There has been some discussion on some other boards about this being internal focus, but others stating that it isn't. What did you find?
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Re: A 70-400mm sample for you
I'm sure it uses internal focus, but not internal zoom.calpon wrote:David,
There has been some discussion on some other boards about this being internal focus, but others stating that it isn't. What did you find?
David
Re: A 70-400mm sample for you
This one is going to be tempting.
Winston Mitchell
KM7D, A700, A77, A77M2, A7M3
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Re: A 70-400mm sample for you
It is already tempting me (not sure to which should I upgrade from SAL75300, the 70-300 G SSM or this one).Winston wrote:This one is going to be tempting.
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Re: A 70-400mm sample for you
I've been thinking about it, and I can't remember the zoom extending like the 70-300mm SSM does. However, I was looking through the lens not at it! The zoom is the front ring. Internal zoom is nearly always the rear ring, as with the 70-200mm SSM. The 70-400mm is built like the 70-300mm in layout, so I think that the front was extending during use, though maybe not as dramatically as the 70-300mm.calpon wrote:yes, sorry, I meant to type zoom 8O
David
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