Well, this is not my attitude at all. Actually, I am not one of the ones who 
dies for 'full frame', except maybe for its promise of excellent high ISO 
response, so I don't have any special problem with systems different to 35mm.

I am sure that the m4/3 is a very promising system for many reasons and I am 
glad you like it so much. It is just that I think that its ability to admit a 
wide range of lens mounts is a bonus but that it has its drawbacks, as Luiz 
says.

Did everybody know this already? Well, the conversation that I mentioned with 
my work colleague was only a few weeks ago and I consider myself as someone 
which is quite up to date with amateur photo equipment...however, I just forgot 
that (m)4/3 was a different format than APS-C and that his old lenses would act 
as if they were longer that they are, not only in their original 35mm cameras, 
but also longer than in the APS-C digital cameras that he already owns.

So, I thought, if I forgot, maybe others can forget too. For some people, like 
you, this isn't a problem at all, but for others, like my colleague, it may be, 
since he will have more portrait and tele lenses and less wide ones and 
probably no super-wide ones with this new system (and he is not willing to buy 
new lenses to fill the gap).

But, well, I admit that maybe it is just me and everybody else here had this 
perfectly clear before this conversation started.

Regards,
Jaume



----- Mensaje original ----
De: Godfrey DiGiorgi <[email protected]>
Para: Pentax-Discuss Mail List <[email protected]>
Enviado: jueves, 15 de enero, 2009 18:14:18
Asunto: Re: Panasonic G1 ... example photo @ ISO 1000

I understand what you're saying. I just hate the constant "it must be 35mm or 
it's shite" attitudes I see so repetitiously promulgated on the web.

The other point of view is also worth thinking about. A number of lenses that 
had great center image circle performance but poor edge/corner performance have 
a new life on 16x24 and FourThirds format cameras. Like that aforementioned 
Pentax M50/1.4 ... wide open, it's edge/corner performance is pretty poor on 
35mm, but it works satisfactorily on FourThirds wide open (still best at 
f/2-2.8 of course).

Beyond that, I'm certain that anyone on this equipment mailing list understands 
that both Pentax and FourThirds DSLRs are a different format from 35mm film 
SLRs. I see no reason to mention it every single time some new lens or camera 
comes out.

Godfrey


On Jan 15, 2009, at 8:26 AM, Jaume Lahuerta wrote:

> OK, I see your point but I'll try to explain mine, which I think is 
> complementary rather than contrary.
> 
> It seems that a lot of the interest in this camera / system is the ability to 
> use any kind of old lenses on it through adaptors. Regarding this, I have a 
> colleague at work that collects all kind of old lenses, specially m42 
> screwmounts, and uses them with the *ist Ds that I sold to him and in a EOS 
> 350D. I told him about this system and his response was "yes, but they will 
> look as 2 x focal length, so no more wide angles. I am not interested on 
> this".
> 
> And then I remembered about my Pentax A24/2.8, that was one of my favorites 
> when shooting film since it gave me a field of view that none of my other 
> lenses could give. However, I have almost never used (except for comparison 
> tests) in digital due to its 'new' field of view.
> 
> That's just what I wanted to say: be careful if you are considering this 
> system in order to use your old lenses on it because the 'conversion factor' 
> (or whatever you want to call it) is greater that on APS-C. Having said that, 
> I realize that for some people this may be an advantage, but for others, like 
> my colleague, it was a clear disadvantage when using his old lenses. If you 
> like a lens just for its pure optical quality, then fine, it will preserve 
> it. But if you like a lens for the combination of optical quality and field 
> of view (which was my case with the 24mm), then the game is over.
> 
> Just wanted to make sure that, whatever category the readers fit, they know 
> in advance about this.
> 
> Regards,
> Jaume


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