-Original Message-
From: Mark Erickson <[EMAIL PROTECTED]>
Subject: Re: Teleconverter question
Snip
"I think there might be something about the optical formula of the F* and FA*
300mm F4.5 lenses that makes them unsuitable for use with teleconverters."
--Mark
> From: Don Herring <[EMAIL PROTECTED]>
>
> I am planning to get a 1.4-S teleconvertor, mainly
to use with my A* 300/4.
>
> Can this particular converter be used with a 500/4.5
screw mount (with the
> screw mount adapter of course)?
Yes it can. Also the L-converters (2x-L, 1.4x-L) do
work with
On 9 Mar 2004 at 18:57, Don Herring wrote:
> That's was my thinking on the 1.4-L and the 300/4. I guess I'll try that
> converter with the screw mount and go from there.
The manual for the "Rear Converter A, 1.4x-s, 2x-s, 1.4x-L, 2x-L" contains a
compatibility cross-reference and is available
At 06:15 PM 3/9/04 -0500, you wrote:
Sas,
I have the A1.4-S Teleconverter and it works fine with the A300/4
lens. The L teleconverters (A1.4-L and A2.0-L) are for very special
applications, big fast glass. They have long snouts that won't fit in the
A300/4. The L's are designed for the A300
Sas,
I have the A1.4-S Teleconverter and it works fine with the A300/4 lens. The L
teleconverters (A1.4-L and A2.0-L) are for very special applications, big fast glass.
They have long snouts that won't fit in the A300/4. The L's are designed for the
A300/2.8, A400/2.8, and such. I have the
On 9 Mar 2004 at 17:07, Fred wrote:
> Well, it can't be a "better choice" if it doesn't fit, and the A
> 1.4-L certainly will not fit the A* 300/4, for example. On the
> other hand, I don't know if that TC will fit the 500/4.5 screw mount
> lens with adapter, so maybe...
The nX-L convertors fit
>> It can be used of course, but for these focal lengths the 1.4-L
>> converter is definitely a better choice
> Inquiring minds want to know - Why is it the better choice?
Well, it can't be a "better choice" if it doesn't fit, and the A
1.4-L certainly will not fit the A* 300/4, for example. On
Kenneth Waller <[EMAIL PROTECTED]> wrote:
It can be used of course, but for these focal lengths the 1.4-L
converter is definitely a better choice
Inquiring minds want to know - Why is it the better choice?
Ken Waller
The A1.4X-L and A2X-L teleconverters both have lens groups that protrude
into
>It can be used of course, but for these focal lengths the 1.4-L
>converter is definitely a better choice
Inquiring minds want to know - Why is it the better choice?
Ken Waller
-Original Message-
From: Sas Gabor <[EMAIL PROTECTED]>
Subject: Re: Teleconverter questio
Hi,
Don Herring wrote:
> I am planning to get a 1.4-S teleconvertor, mainly to use with my A* 300/4.
>
> Can this particular converter be used with a 500/4.5 screw mount (with the
> screw mount adapter of course)?
It can be used of course, but for these focal lengths the 1.4-L
converter is de
Thanks everyone for your help. I think I'll just save up a
little money and hold off for nicer macro equipment (bellows)
or the Pentax 100mm macro lens (the cheap one). That being
said, if I'm browsing ebay and see a vivitar macro
teleconverter for an amazing deal, I'll grab that. Enjoy the
Vivitar Macro focusing teleconverter, you can find them on
e-bay regularly in both k and ka mount.
At 05:07 PM 5/29/2003 -0400, you wrote:
Hello,
I was wondering if anyone would like throw in a
recommendation for a decent budget teleconverter. I would
like to use it with my smc-a f/2 50mm and t
I presume you are going to use this lens with bellows for macro work? You
would probably be better off just using the 50 mm and bellows. A 2x
teleconverter will turn your 50 mm lens into a 100 mm lens but it will not
be a macro and the image quality will inevitably decline. It is the flat
field
Bob, I have used the 1.4X-S
with my 300mm FA and get very acceptable results. Other than the obvious
difference in lens power, I can't tell from the photo wether I've taken the
photo with or without the converter.
Ken Waller
- Original Message -
From:
Bob Keefer
To: pe
Kevin,
>From an 8.5x11 inch Pentax Lens catalogue, page 26 covers SMC-A Rear
Converters. The table Usable Lenses with Rear Converter-A says the A*300/2.8
can use all 4 converters (1.4 or 2.0, S or L), but it indicated Better
performance can be achieved with the L versions on the A*300/2.8.
I
On Mon, 23 Apr 2001 05:53:17 -0500, Kevin Thornsberry wrote:
>Can I or can I not use the 1.4x-L and 2.0x-L on my A*300/2.8?
Yes you can, it is one of the lenses the x-L converters are designed for ...
The note on BOZ's site relates to the f4 and 4.5 lenses, like the F* 300 4.5
Regards, JvW
--
Recently Kevin Thornsberry wrote:
>
> I was wanting to put a 2x-L on my A*300/2.8 until I checked Boz's site which says
>the L converters are for focal lengths greater than 300 mm. Can I or can I not use
>the 1.4x-L and 2.0x-L on my A*300/2.8?
Hi Kevin,
I use the exact Pentax wording:
S = t
From: Jan van Wijk [SMTP:[EMAIL PROTECTED]]
Sent: Monday, April 23, 2001 6:16 AM
To: [EMAIL PROTECTED]
Subject: Re: teleconverter question
On Sun, 22 Apr 2001 09:13:03 -0700, Bob Keefer wrote:
>
>Also, any thoughts on the 1.4X-L?
>
It's the best of all the converte
On Sun, 22 Apr 2001 09:13:03 -0700, Bob Keefer wrote:
>
>Also, any thoughts on the 1.4X-L?
>
It's the best of all the converters I own (about 5 I think :-)
It has the biggest diameter lens elements, no causes less vignetting wide open.
Note that it only fits the longer lenses, that have enough
Bob,
The German Pentax pages include PDF descriptions that list compatibility
between lenses and teleconverters. The FA*300/4.5 page is:
http://www.foto.pentax.de/produkte/pdf/pentax024400.pdf
and it does list the 2X-S teleconverter and FA*300/4.5 as being compatible.
The 2X-L is not list
My A2X-S is very sharp with either my 400/5.6 K or my 200/4 M. I have an
18x12 print of a race car that I shot with the 400/2XS combo that really
leaves nothing to be desired in terms of sharpness. I don't think the L
converters will fit the 300/4.5, but I could be wrong. Generally, the L
converte
On 21 Apr 2001, at 22:53, Bob Keefer wrote:
> Hi all:
>
> I have the Pentax 2X-S teleconverter, which frankly doesn't produce very sharp
>images with my FA*300/4.5, not even locked down into the tripod with careful
>technique. (I get better slides with my son's Canon 300/4.0 with a Canon 2X. S
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