Image Circle Database

[Ryan S]

Not sure why Cooke would say that...
It may very well be a matter of opinion. They may consider 30mm the acceptable image circle.
I measured to what I considered reasonably usable in regards to light and focus falloff.
They may also want to keep things simple and not list a mere 2mm difference between some lenses and not others.
Just my guess.

Well, then I look forward to somebody doing some tests with the Panchros and 5is on 5K. Hopefully you'll get to test one or both sets in the reasonable future.

[Richard Bradbury]

Has anyone measured the image circles of Canon K-35s? I know most of them (24, 35, 55, 85mm) are said to cover FF-35, but I'm specifically interested in the circle size of the 18mm T1.5.

[Steven Hilder]

If anyone's interested, I've updated my chart with the specs that Jim has confirmed.

Hopefully this and Matt's database will be helpful for those buying new lenses for use on MX sensors.

[Ivan G]

5k 2:1 is larger then 5k 16x9?

[Mark Andersen]

I don't see 5KFF on the list, but I think it's close to "active pixel array". I am shooting this a lot so I can also extract high quality stills from the footage.

[Tim Morten]

Dusting off an old thread... where is the latest version of the image circle database hosted? Time to start thinking ahead in terms of Dragon...

[Matthew Duclos]

I've not reposted the database. It was hosted on MobileMe which went the way of the dinosaur.
I still have the numbers, I just need to find time to rebuild it... Bigger. Better. Faster.

[Richard Bradbury]

You could look here:
www.tinyurl.com/cinelenses

It's a database of lenses I've been building and maintaining for a while in which I've tried to include as much info on lens coverage as possible. I've taken many of my own measurements, published data from manufacturers and added a few numbers from Matthew's old database (hope you don't mind). There are many gaps though, so if anyone is interested in adding information I'd be happy to hear from them.

[Chunjiang zhou]

You could look here:
www.tinyurl.com/cinelenses

It's a database of lenses I've been building and maintaining for a while in which I've tried to include as much info on lens coverage as possible. I've taken many of my own measurements, published data from manufacturers and added a few numbers from Matthew's old database (hope you don't mind). There are many gaps though, so if anyone is interested in adding information I'd be happy to hear from them.

[Michael Tiemann]

The link at the top of this thread does not work from my mobile device.