quickie shot of 4 Pentax lenses ...

[P. J. Alling]

None of the unit focusing primes do IIRC, in any series, though I'm sure 
someone will correct me if I'm mistaken. 

Adam Maas wrote:
> 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 <christian at skofteland.net>:
>>>       
>>>> 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
>>>> PDML at pdml.net
>>>> 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
>>> PDML at pdml.net
>>> http://pdml.net/mailman/listinfo/pdml_pdml.net
>>>       
>
>
>   


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