Where is infinity?

Started Feb 28, 2013 | Questions thread
Shop cameras & lenses ▾
Forum ProPosts: 11,977Gear list
Re: Where is infinity?
In reply to sybersitizen, Mar 1, 2013

sybersitizen wrote:

EinsteinsGhost wrote:
... If you focused past HFD (10m, for example), you’d not see any difference (3.60m to infinity will be in focus).

I assume you mean actually turning the focus ring to the 10m mark. If so, you were on solid ground until here, but that part is not right. DOF would now extend from (roughly) 4 or 5 meters to infinity - and actually 'beyond' infinity, meaning some of the distant DOF is being 'wasted'.

No. I don't really use the distance scale on the lens. By 10m, I meant the actual distance (measured or approximated).

 EinsteinsGhost's gear list:EinsteinsGhost's gear list
Sony Cyber-shot DSC-F828 Sony SLT-A55 Sony Alpha NEX-6 Sigma 18-250mm F3.5-6.3 DC OS HSM Sony 135mm F2.8 (T4.5) STF +12 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