Chuck,
Thanks for visiting my blog.
Petzval lenses are not rare. However, the prices are expensive if with
brand name, such as Voigtlander, Dallmeyer etc. They are over US$1,000 but
there is cheaper version without brand name because no patent for the
Petzval Lens, so that many manufacturers produced Petzval lenses in that
era.
The image circle coverage depends on the focal length. My 6in F3.6 Petzval
covers 4x5" in fit no any movement, my another 8-1/4in F4.5 can cover 5x7".
Of course the image circle may be enlarger if slow speed water-house
applied.
Cheers,
Michael
On 10 January 2016 at 21:34, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
wrote:
> Well done. I enjoyed the history. Are these lenses rare and expensive?
> What it the image circle size? Just 4x5 or will it cover larger?
>
> Chuck Norcutt
>
>
>
> On 1/8/2016 3:57 AM, Michael Wong wrote:
>
>> Have completed the first brass lens introduction. Comments are welcome :p
>> https://filmterminator.blogspot.hk/2016/01/brass-lens-petzval-lens.html
>>
>>
>>
>> Cheers,
>> Michael
>>
>> On 7 January 2016 at 08:27, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
>> wrote:
>>
>> Tell us soon about your old brass lenses.
>>>
>>> Chuck Norcutt
>>>
>>>
>>>
>>> On 1/6/2016 6:51 AM, Michael Wong wrote:
>>>
>>> The first time to build a blog with Google blogger programme. Please
>>>> comment and I wish to make it better, mainly to share my toys and photos
>>>> with detail description :p
>>>> https://filmterminator.blogspot.hk/
>>>>
>>>>
>>>> Cheers,
>>>> Michael
>>>>
>>>> --
>>>>
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> _________________________________________________________________
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