Re: [OM] OM-5D, part II, Winter Pear Orchard

[Chuck Norcutt]

The hyperfocal distance of an 18mm lens at f/3.5 (wide open) is only 2.8 
meters.  Infinity is certainly already in focus at 3 meters... as is 
everything back to 1.5 meters.  Not to worry about the adapter.

Dr. Focus



Piers Hemy wrote:
> If the 8mm focuses at infinity when the lens shows 3m, I think you need a
> thicker adaptor, not a thinner adapter. 
> 
> Piers
> 
> -----Original Message-----
> From: iwert bernakiewicz [mailto:zuikooh@xxxxxxxxx] 
> Sent: 22 January 2009 11:01
> To: Olympus Camera Discussion
> Subject: Re: [OM] OM-5D, part II, Winter Pear Orchard
> 
> --snip
> 
> The 18mm is very critical in focussing, I think the focussing ring on my
> copy is a bit off maybe, being the 3m mark is already infinity. It might as
> well be the adapter, I have ordered a second one which should be thinner
> (adapter that is).
> 
> --snip
> 
-- 
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