None of the DA lenses rotate the front filter ring/element.

-Adam


John Francis wrote:
> Are you really worried about the focussing ring moving,
> or just about the front element of the lens rotating
> (which can be a problem if you are using a polarizer)?
> 
> Lenses marked as "IF" (internal focus) don't rotate the front
> element.  This includes several lenses not in your list:
> 
>   smc PENTAX-F  135mm F2.8 [IF]
>   smc PENTAX-F* 250-600mm F5.6 ED[IF]
>   smc PENTAX-F* 300mm F4.5 ED[IF]
>   smc PENTAX-F* 600mm F4 ED[IF]
> 
>   smc PENTAX-FA* 24mm F2 AL[IF]
>   smc PENTAX-FA  24-90mm F3.5-4.5 AL[IF]
>   smc PENTAX-FA  28-105mm F4-5.6 [IF]
>   smc PENTAX-FA  28-105mm F3.2-4.5 AL[IF]
>   smc PENTAX-FA  28-200mm F3.8-5.6 AL[IF]
>   smc PENTAX-FA* 80-200mm F2.8 ED[IF]
>   smc PENTAX-FA* 85mm F1.4 [IF]
>   smc PENTAX-FA  135mm F2.8 [IF]
>   smc PENTAX-FA* 200mmF2.8 ED[IF]
>   smc PENTAX-FA* MACRO 200mm F4 ED[IF]
>   smc PENTAX-FA* 250-600mm F5.6 ED[IF]
>   smc PENTAX-FA* 300mm F4.5 ED[IF]
>   smc PENTAX-FA* 300mm F2.8 ED[IF]
>   smc PENTAX-FA* 400mm F5.6 ED[IF]
>   smc PENTAX-FA* 600mm F4 ED[IF]
> 
>   smc PENTAX-DA  10-17mm F3.5-4.5 ED [IF]
>   smc PENTAX-DA  12-24mm F4 ED AL[IF]
>   smc PENTAX-DA  14mm F2.8 ED[IF]
> 
> 
> On Wed, Feb 07, 2007 at 12:56:56AM +0100, Thibouille wrote:
>> I dunno why most of the time nobody ever mention this but the DA14,
>> with DFA50/100 are AFAIK the ONLY pentax lenses which focus WITHOUt
>> ever makiing the focussing ring turn. IMO this is VERY useful.
>>
>> Sorry for yelling but I thougt it was important.
>>
>> 2007/2/6, Christian <[EMAIL PROTECTED]>:
>>> Godfrey DiGiorgi wrote:
>>>
>>>>    http://homepage.mac.com/godders/lenshood-lineup-1784.jpg
>>> What I find interesting is the size of the focus rings.  The DA14 being
>>> such a big lens appears to have a really nice manual focus ring, the
>>> others look horrible.  How is manual focus feel on these?  I hated the
>>> teeny focus ring and focus feel of the FA28-70/4
>>>
>>>
>>> --
>>>
>>> Christian
>>> http://photography.skofteland.net
>>>
>>> --
>>> PDML Pentax-Discuss Mail List
>>> [email protected]
>>> http://pdml.net/mailman/listinfo/pdml_pdml.net
>>>
>>
>> -- 
>>
>> Thibault Massart aka Thibouille
>> ----------------------
>> *ist-D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ...
>>
>> -- 
>> PDML Pentax-Discuss Mail List
>> [email protected]
>> http://pdml.net/mailman/listinfo/pdml_pdml.net
> 


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