Diffraction Limit

Started Aug 28, 2013 | Discussions thread
Anders W Forum Pro • Posts: 21,468
Re: In other words...

Great Bustard wrote:

Anders W wrote:

Great Bustard wrote:

Steen Bay wrote:

Took a look at FZ200 in IR's 'comparometer' to see what kind of resolution we're talking about here. The resolution test chart is shot at f/4 (DoF/diffraction equivalent to f/22 on FF and f/11 on mFT), and I'd say that the resolution is about 2200 lw/pH. Not that bad for a sensor with 3000 vertical pixels.

The question is how that resolution would fare against a camera with a FF system at f/22 sharpened to the same degree.

You know me -- I'm quite the fan of the FZ200 and quite the fan of putting anything I say to the test.

So, if you can sport me links to a photo from the FZ200 at f/4 (or any other superzoom) and a RAW (DSLR jpg engines don't sharpen like compact jpg engines) photo of the same scene from FF at f/22, I'll be happy to process the FF photo and post a comparison.

Here's the link you need for the FZ200. Take your pick among the RAWs available on that page and find the corresponding one for the the FF camera you want to compare with.


In general, just find the IR review of the camera you are interested in, then click on "Samples" in the top menu and then on "Thumbnails" in the menu that appears below the topmost one.

Those are all at f/4, which is fine, but where do I find f/22 pics on FF? I found this, for example:


but nothing at f/22.

Hmm. Didn't think of that minor complication.

For some strange reason, it seems like the test sites prefer to shoot cameras in the aperture range where they do best. Wonder why they do that. 

I am afraid you might have to ask for some diligent forum member with a FZ200 as well as an FF camera to help you out here.

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +28 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow