Can Pentax make A Decent Lens? Ricoh have not fixed QC issues...

Started May 18, 2014 | Discussions thread
Shop cameras & lenses ▾
Senior MemberPosts: 1,972Gear list
Re: Please use better experiment protocol
In reply to Mark Ransom, May 22, 2014

Mark Ransom wrote:

Couldn't a decentered lens make the image look like it was off center, even if it wasn't?

Think about a tilt-shift lens - the ultimate decentered lens.   By adjusting the lens's optical axis relative to the sensor, both in position and angle of incidence, you can bring a skewed subject into acceptable focus over the whole field of view.   The miracle of the Scheimpflug principle.

 BobORama's gear list:BobORama's gear list
Pentax K-5 Sigma 10mm F2.8 EX DC HSM Diagonal Fisheye Pentax smc DA 18-55mm F3.5-5.6 AL WR Samyang 14mm F2.8 IF ED MC Aspherical +8 more
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow