> .... even though "Full Frame" is generally used to mean one thing by
> the average user, it is technically not a correct use of the term.
>

Exactly.  Words and phrases can change their definition by shifts in common
usage but I don't have to agree with the change.  And if enough people
disagree and refuse to fall in line then the change won't stick.  In this
case it's lazy publicists who are taking a generic term and applying it in a
specific and exclusive way to cameras with a 35mm heritage. 

Medium format digital cameras are mostly based on 6cm x 4.5cm cameras, but
all have reduced size sensors.  The biggest is the Leaf AFi-II with the
56Mpixel back at 56mmx 36mm, but 48mm x 36mm seems to be a more common
sensor size in medium format.  What if a 56mm x 42mm or larger sensor were
to appear?  According to the JCO line of reasoning, "full frame" is a term
that exclusively refers to 36mm x 24mm, so we won't be free to call it a
"full frame" sensor.  Just try to stop me!

Regards, Anthony

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
> John Celio
> Sent: Tuesday, 21 October 2008 2:36 PM
> To: Pentax-Discuss Mail List
> Subject: Re: Sony full frame A900, where's Pentax?
> 
> > Yes I have. My point is that FF generally, almost universally today
> > Means a 24x36mm sensor. This is because DSLRs using 24x36 designed
> > Lenses are predominantly available in FF and less than FF. All the
> > Other formats, 4/3 etc. don't really have two or more different
> > Size sensors being used for a particular format lenses system like
> > Whats going on with legacy 35mm film lenses and DSLRs that use them.
> 
> I see what you're saying now, and it does make sense on one level.
However,
> I think that even though "Full Frame" is generally used to mean one thing
by
> the average user, it is technically not a correct use of the term.
> 
> John
> 
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