Who is reviewing film lenses on digital gear? Some bozo on youtube?
If I read a review on a vintage Nikon lens reviewed with a digital camera, showing it to have poor performance, I might not purchase the lens when it will be a great performer with film…!
One disadvantage of using older film lenses on newer digital cameras is you need to do stop-down metering with the dof preview or use an external meter.
The potential issue is that if the rays strike a digital sensor at an oblique angle, you can see color fringing that isn't an issue with film. As a practical matter, I'd only be concerned about very wide lenses, and I'm not sure it's so relevant when discussing retrofocus lenses designed for SLRs. It might be a bigger problem with rangefinder or large format lenses.
Yes, I agree… but that evidence came after the “assumption” was made.
Is this evidence what you knew already, or expected to read?
Certainly. I’m currently using a vintage lens in a vintage film camera body that uses stop-down metering. What an archaic pain in the neck!
For example some of the wider angle Hasseblad lenses do not perform well with digital backs because some of the light coming in to the image plane come in at a too oblique angle.
Try the app myLightMeter pro, it’s great…!
Who is reviewing film lenses on digital gear? Some bozo on youtube?
One disadvantage of using older film lenses on newer digital cameras is you need to do stop-down metering with the dof preview or use an external meter.
It is the opposite. Film doesn’t make a film lens look better, digital just makes a film lens look worse.
The needs of digital sensors are more strict than film. Digital sensors need light impinging normally (close to 90 deg.). Film/emulsion being transparent and 3D (though thin) can tolerate deviation from normalcy much better. Vintage lenses are less stringently designed than most digital lenses (this is largely due to increase in computational capacity in the digital years), and do not do as well on digital sensors.
For example some of the wider angle Hasseblad lenses do not perform well with digital backs because some of the light coming in to the image plane come in at a too oblique angle.
One disadvantage of using older film lenses on newer digital cameras is you need to do stop-down metering with the dof preview or use an external meter.
And I have testing which definitively showed -- with more than one lens -- WRONG metering when metering stopped down using Olympus OM lenses on Canon EOS dSLR!
What is the best C/Y adapter for a 5DMkII ? -- Canon Lenses in photography-on-the.net forums
What is the best C/Y adapter for a 5DMkII ? in Canon Lensesphotography-on-the.net
Which is one of the reasons that mirrorless digital cameras are so successful with adapted lenses - the EVFs brighten everything automatically, and the meters read what they need to read.
For example some digital backs did not work well on the Hasselblad SWCs.
That depends on the camera. Pentax DSLRs use open aperture metering with all lenses from the A-Series (c1984) onwards. They need stop-down metering with the earlier K and M-Series lenses although it is only a matter of jabbing a button momentarily. I understand that Nikon DSLRs go one better and can open meter even with their oldest lenses - so I was told by a Nikon user.One disadvantage of using older film lenses on newer digital cameras is you need to do stop-down metering with the dof preview or use an external meter.
Key word is some. Some backs work great with SWC and other Hasselblad wides.
The same stands for other film lenses (and digital too). Some sensors simply don't work well with certain lenses.
While one lens can perform badly on one digital camera it could be working great on another. I have observed number of cases where this happens.
And sometimes lens that was bad on low resolution camera is sharper per pixel on much larger resolution camera.
This was all much more visible in the beginning of mass production digital since manufacturers were touting tele centric lenses and that digital cameras can't work with all lenses that have light hitting sensor at steep angles.
This was mostly proven wrong with recent sensor developments. Testing lenses that were labelled as poor performers with newer bodies that perform well with steep angles does produce quite few pleasant surprises. Some lenses are still equally bad and some don't show any improvement at all.
That depends on the camera. Pentax DSLRs use open aperture metering with all lenses from the A-Series (c1984) onwards. They need stop-down metering with the earlier K and M-Series lenses although it is only a matter of jabbing a button momentarily. I understand that Nikon DSLRs go one better and can open meter even with their oldest lenses - so I was told by a Nikon user.
There is no way a modern Nikon digital camera could read the aperture of a non-AI Nikkor lens without stopping down.
Going further, they are incompatible…!
Well, the SLRS (including digital) all take F Mount lenses and they'll work just fine. A bit of a hassle, but they are compatible.
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