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Doc Sharptail
Joined: 23 Nov 2020
Posts: 1055
Location: Winnipeg Canada
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 Posted: Mon Aug 28, 2023 9:10 am Post subject: Tamron Adaptall 2 28mm f 2.5 02B on D-810 |
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Doc Sharptail wrote:
I am liking my experience with Tamron so far. This is my fourth lens from this maker.
Lady slipper at MFD and ISO 64 wide open.
Bit of flare crossing the image from upper left to lower right.
Not sure if this is a fault of the old cheap N.P.S. 1-A filter I have on it.
The front face of the focus ring contacts the squeeze tabs on the pinch cap without it, which is about the only major design flaw I can find with this lens.
Another slipper, this time at f8.
It is very sharp, at least in the center.
Perhaps f5.6 would better fill the prescription for this level of detail.
I find the back ground a bit distracting.
Will have more to add later with some crops of the above.
-D.S.
_________________
D-810, F2, FTN.
35mm f2 O.C. nikkor
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon |
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 1055
Location: Winnipeg Canada
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| Posted: Mon Aug 28, 2023 5:07 pm Post subject: |
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Doc Sharptail wrote:
Center crop of the wide open at f2.5 image above.
Center crop of the stopped down to f8 image above.
-D.S.
_________________
D-810, F2, FTN.
35mm f2 O.C. nikkor
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon
Last edited by Doc Sharptail on Tue Aug 29, 2023 9:10 am; edited 1 time in total |
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 1055
Location: Winnipeg Canada
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| Posted: Tue Aug 29, 2023 6:20 am Post subject: |
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Doc Sharptail wrote:
At f8 here.
At f5.6. Shows a bit of very slight barrel distortion towards the edges.
I have to be a bit more careful with metering on scenic frames- it has a tendency to blow-high lights out at the narrow center-weighted or spot settings.
This lens is worth working with a lot more.
-D.S.
_________________
D-810, F2, FTN.
35mm f2 O.C. nikkor
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon |
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 1055
Location: Winnipeg Canada
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| Posted: Tue Aug 29, 2023 7:16 am Post subject: |
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Doc Sharptail wrote:
First samples previously posted in the "Latest Lens" thread in the m/f lens forum.
Both at f2.5.
-D.S.
_________________
D-810, F2, FTN.
35mm f2 O.C. nikkor
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon |
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