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Members News Monthly Image Competition April 2012 |
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The quest we set was quite straightforward: to expolore the performance
of some old Nikkor lenses on a modern DSLR (a D700). A supreme advantage
of the Nikon system is that older lenses will still (mainly) connect to
a modern camera and provide a certain amount of functionality as well.
The major loss will be auto focus, but for situations in which manual
focus will suffice, this is hardly a burden. Indeed, such is the dumbing
down of the modern lens that it is actually something of a joy to handle
an old lens with distance engravings and an ability to quickly set at
the hyperfocal distance! The modern Nikon camera allows you to set up
‘Non CPU’ lens data so that basic exposure metering is re-established.
Focus confirmation is routinely available. The meta data includes the
lens focal length and the aperture, shutter speed but not the focus
distance. The Test Lenses
With a lens inventory going back to the early 70s we had plenty to
choose from, but we selected the following lenses for test and
comparison:
One interesting feature is that all the old lenses have a 52mm thread
and thus the ability to share things such as polarising filters.
Testing –Test Targets Test targets have their place in lens testing, but only just! After all very few people take images fine black and white lines for a living (some used to, but modern electronic chip manufacture is now imaged by non-lens systems and lasers!). Even so we attempted to do a ‘rough sort’ of the lenses using test targets. All it showed us was that the old 43–86mm Zoom-Nikkor was a bit dodgy near the edges, something we always knew, the lens was known in its heyday as ‘ol’ pin and barrel’! Other than that we found that the interaction between the target lines and pixels simply ‘moiré-fringed’ the test beyond any useful comparisons.

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