By the way, a very good link with some very interesting ideas!

On Wed, Jan 14, 2015 at 11:35 AM, Zos Xavius <[email protected]> wrote:
> A flat field 300 is kind of rare. Given its 5.6 I'm surprised its not
> apochromatic as well. I would really love to acquire one of these as
> well as a pentax M 300/4 and compare. Either one would fit the bill
> for the relative limited use I would get out of the focal length.
> Especially with a good TC.
>
> On Wed, Jan 14, 2015 at 8:51 AM, Darren Addy <[email protected]> wrote:
>> Thanks for the comments Steve & Brian.
>>
>> Regarding a tripod collar, I found this thread:
>> http://www.dpreview.com/forums/thread/2888491
>> recommending "a Lens Collar for Canon EF 70-200mm/F4L from ebay. They
>> also come in black. I bought a couple of the black ones that I am
>> using for some other purpose. BTW, these are the same tripod collars
>> that can be used for the Pentax-FA*300/4.5."
>>
>> I'm a bit surprised to find a number of people using the 54B for
>> astrophotography (a torture test for lenses). This page recommends it
>> (along with a couple of Pentax lenses) for example:
>> http://www.gyes.eu/astro/camera_settings.htm
>>
>>
>>
>> On Tue, Jan 13, 2015 at 2:18 PM, Brian Walters <[email protected]> 
>> wrote:
>>> Quoting Darren Addy <[email protected]>:
>>>
>>>> I tripped across a manual focus lens last night that I was not
>>>> previously aware of: The Tamron SP 300mm f5.6 Flat Field (model 54B),
>>>> an Adaptall2 lens. The two big things it has going for it are
>>>> lightness and close focusing capabilities.
>>>
>>>
>>>
>>> I have one of those - as well as the 2x adapter.  I haven't used it for some
>>> time, though - manual focussing of long lenses is a bit of a challenge these
>>> days.
>>>
>>> I used to take it to the Sydney Cricket Ground once a year where I'd use it,
>>> tripod mounted, for some action shots of the players. I may do that again
>>> this year.  I only wish it had a tripod collar - it's not a heavy lens but I
>>> always felt it was a bit unbalanced without one so I cobbled together a
>>> rough support to move the tripod support a bit further from the camera.
>>>
>>> Hope you enjoy yours.
>>>
>>>
>>> --
>>> Cheers
>>>
>>> Brian
>>>
>>> ++++++++++++++++++++++++++++++++++
>>> Brian Walters
>>> Western Sydney Australia
>>> http://lyons-ryan.org/southernlight/
>>>
>>>
>>>
>>>
>>> --
>>> PDML Pentax-Discuss Mail List
>>> [email protected]
>>> http://pdml.net/mailman/listinfo/pdml_pdml.net
>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and
>>> follow the directions.
>>
>>
>>
>> --
>> Life is too short to put up with bad bokeh.
>>
>> --
>> PDML Pentax-Discuss Mail List
>> [email protected]
>> http://pdml.net/mailman/listinfo/pdml_pdml.net
>> to UNSUBSCRIBE from the PDML, please visit the link directly above and 
>> follow the directions.

-- 
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.

Reply via email to