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Old Jan 8, 2017, 5:40 AM   #11
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I guess you mean lens and test charts

I'm quite happy with the quality I get from A3 (13x19) enlargements from this lens on my walls when most folks rarely look past resized pictures on their PC (or iPhone) screens:

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Old Jan 8, 2017, 6:55 AM   #12
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I got it. I never said the Tamron 16-300 was a bad lens. I simply said that there are better lenses if the OP is willing to change lenses occasionally.
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Old Jan 9, 2017, 7:57 AM   #13
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Quote:
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Where they don't overlap is where a landscape photographer cares the most about:

16mm -> 84.06 degree field of view
18mm -> 77.40 degree field of view

270mm -> 6.11 degree field of view
300mm -> 5.50 degree field of view

i.e. A negligible difference of less than 1 degree FOV @ 270/300mm (where you can make up for with a small crop)
But a huge deficiency at 18mm where you can not add back what you didn't capture with that tiny 2mm difference in the first place...
FYI, the difference between the 270mm's 6.11 Angle of View and the 300mm's 5.5 AoV is 10%, while the difference between the 18mm's 77.4 AoV and the 16mm's 84.06 is only 9%, neither of which is particularly significant.

BTW, Field of View is a term that is typically used for optical instruments like binoculars, spotting scopes and telescopes. In photography however, the term Angle of View is used to distinguish between the field of view of a lens, and that portion of the field of view that is captured by an image sensor. The field of view of a lens doesn't change with the size of the image sensor it happens to be paired with, but the angle of view does.
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Last edited by TCav; Jan 9, 2017 at 5:27 PM. Reason: minor
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Old Jan 11, 2017, 3:37 AM   #14
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FYI, the difference between the 270mm's 6.11 Angle of View and the 300mm's 5.5 AoV is 10%, while the difference between the 18mm's 77.4 AoV and the 16mm's 84.06 is only 9%, neither of which is particularly significant...
We can play this number game all day:
a. 84.06 - 77.4 = 6.66 degree wider
b. 6.11 - 5.50 = 0.61 degree narrower
-> That's at least 10 times more of what you gain (which you wouldn't capture otherwise) at the wide vs what you lost at the tele (which you can crop)!!!
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Old Jan 11, 2017, 9:34 AM   #15
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We can play this number game all day:
a. 84.06 - 77.4 = 6.66 degree wider
b. 6.11 - 5.50 = 0.61 degree narrower
-> That's at least 10 times more of what you gain (which you wouldn't capture otherwise) at the wide vs what you lost at the tele (which you can crop)!!!
... but either way, the difference amounts to cropping just 10% off the frame.
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Old Jan 12, 2017, 5:44 AM   #16
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... but either way, the difference amounts to cropping just 10% off the frame.
I can see how you can easily crop out ~half degree (0.61) of a wider 270mm to make it look like a narrower 300mm lens...

However can you explain how one can add the extra 6 degrees wider picture registered by a 16mm lens to a narrower image of an 18mm lens which did not capture it in the first place?
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