PentaxLife Tag: lenses

Vitali on "New lenses froom Pentax!"

Vitali — Sat, 19 Jul 2008 04:30:25 +0000

loveking, it will

The only significant difference of K100D Super is exactly what you need - SDM (in lens motor) support.

loveking on "New lenses froom Pentax!"

loveking — Thu, 10 Jul 2008 21:20:58 +0000

Will the Sigma 70-200 HSM works on K100D Super,
I knew it does not work on K100D

Illuminae on "New lenses froom Pentax!"

Illuminae — Fri, 01 Feb 2008 15:44:50 +0000

Pentax (by summer 2008) - 7 lenses:
DA 18-55 mkII
DA 55-300 f4-5.8
DA*200 f2.8
DA*300 f4.0
DA 35 f2.8 macro
DA*60-250 f4.0
DA 17-70 f4.0
(after Summer 2008) - 3 lenses + TC
15mm Limited
DA*30mm
DA*55 f1.4

Sigma - 4
50-150 HSM
70-200 HSM
120-400 HSM
150-500 HSM

Tamron - 3 lenses
17-50 f2.8
70-200 f2.8
10-24 f3.5-4.5

Illuminae on "New lenses froom Pentax!"

Illuminae — Fri, 01 Feb 2008 15:40:07 +0000

http://images.gfx.no/418/418960/pentax_60-250mm_lens.jpg

Illuminae on "New lenses from Pentax!"

Illuminae — Fri, 01 Feb 2008 13:19:06 +0000

Pentax announces new lenses:
- SMC DA* 60-250mm f4 ED IF SDM
- SMC DA 17-70 f/4 AL[IF] SDM
- SMC DA* 55mm f/1.4 SDM

And a new SMC DA* 30mm has shown up on their roadmap: http://www.digital.pentax.co.jp/en/lens/roadmap.pdf

Illuminae on "New lenses froom Pentax!"

Illuminae — Fri, 01 Feb 2008 13:18:32 +0000

Pentax announces new lenses:
- SMC DA* 60-250mm f4 ED IF SDM
- SMC DA 17-70 f/4 AL[IF] SDM
- SMC DA* 55mm f/1.4 SDM

And a new SMC DA* 30mm has shown up on their roadmap: http://www.digital.pentax.co.jp/en/lens/roadmap.pdf

NitroFan on "Newbie K10D lens compatibility confusion!!!!"

NitroFan — Sun, 11 Nov 2007 11:14:03 +0000

Hi rvannatta,
Wow!! that realy does answer my question completly, thank you very much for taking the time to go into so much detail.

I have now had my K10D for 3 weeks and enjoy it more each time I use it, I am so pleased I did my research properly before I made my buying decision. My previous front runner a Canon 400D (Digital Rebel)now seems a very second rate option.

Vitali on "Newbie K10D lens compatibility confusion!!!!"

Vitali — Wed, 07 Nov 2007 17:20:53 +0000

Thank you for detailed answer, rvannatta. Very useful and informative.

rvannatta on "Newbie K10D lens compatibility confusion!!!!"

rvannatta — Mon, 05 Nov 2007 16:48:21 +0000

This is only half the story however. While it is true that every pentax lens pretty much in history
is usable, some work better than others and not all functions work. Until 1975 pentax used a 42mm screw mount, then they switched to a K mount
which was enhanced to the KA mount about 1980.

The screw mount lenses often have the the brand name "Takumar" associated with them, and the early K mount may be called "SMC" for "SMC-M"
the KA mount lenes are often referred to as SMCA or "SMC-A". The SMC is a good thing and stands for super multicoating which is still used.

Newer lenses (with auto focus) are labeled "F" or "FA" or "DA"
In my view those without the "A" should be avoided. They are easy to tell by looking at them because the "A" is a position on the Aperature ring, used as an alternative to manually setting the 'F stop'. IT is functionally equilivalent to the new DA lenses which have no aperature ring at all. You set the lens to 'A' and forget it.

If you have lenses without the "A" you can use them, but I sure wouldn't buy one. I've used Pentax cameras for 40 years, but have gotten rid of all my lenses that are 'pre-A'.

If you are shopping on EBAY the "A" type lenses don't cost much more than the older ones and are much more convenient to use. I only suggest the
older ones for purcahse where there is a BIG cost difference.

NitroFan on "Newbie K10D lens compatibility confusion!!!!"

NitroFan — Sun, 04 Nov 2007 19:00:50 +0000

HI Vitali,
Thank you for your reply it was helpful.

Vitali on "Newbie K10D lens compatibility confusion!!!!"

Vitali — Sun, 04 Nov 2007 00:03:22 +0000

Every Pentax lens ever manufactured will work on your Pentax digital SLR including screw mount, 645 and 67 lenses with appropriate adapter. If the lens have aperture ring on it and this link haven't A (auto) position all the exposure metering will be made at the aperture settings set on the lens.

NitroFan on "Newbie K10D lens compatibility confusion!!!!"

NitroFan — Fri, 02 Nov 2007 17:34:58 +0000

Hi all,
I am a first time pentax owner (K10D) having been an Olympus owner for a long time. I am totaly confused as to what older Pentax lenses will and will not fit on my Body.
Could some kind soul please help me out with the following (The idiots guide to prefered!!)

What is the "A" thing all about? and how do i know which lenses have it!

What designations should I look out for on lenses that are manual focus only, yet will allow the camera to operate in Auto Av Tv etc exposure modes when required.

What older auto focus lens designations should I look out for?

I do not want to use adaptors and I dont want to be bothered with complicated exposure calculations whilst i am try to shoot!

Thanks in anticipation.

rvannatta on "Supersonic vs Body AF?"

rvannatta — Mon, 01 Oct 2007 19:56:45 +0000

Life is pretty simple. the lens will work either way on the K10D depending on which software you have in the camera body. If you hear the lens whirring to focus like AF lenses are are familar with, you have the old software and it is focusing in the convential manner with the CAM drive in the lens mount.

If it focuses silently and almost instantly
you are using the SDM.

The SDM ONLY works with the new version 1.3
software. which was released a couple of months ago when the lens was released, so unless you bought the K10 in the last few weeks you probably have an older software version.

There are instructions on the Pentax website for downloading and updating the software in your camera which is at no cost.

Marq on "Supersonic vs Body AF?"

Marq — Fri, 28 Sep 2007 11:24:13 +0000

Hi!
I just bought my 50-135 2.8 DA* lens, and since I've read that us K10D users have two choices with this lens, either the supersonic AF or Body AF, I was wondering how do I know which is which, and when do I know the supersonic is working?

Thanks,
Marq

Marq on "Shopping for Pentaxians in Paris"

Marq — Tue, 25 Sep 2007 07:26:52 +0000

Thanks for the link.
Magma photo is in fact quite close to where I'm staying.
But nobody seems to have the Sigma here in Europe.
However, the Pentax 50-135 SDM 2.8 is now widely available, so I might have to go for that instead.

Taeadr on "Shopping for Pentaxians in Paris"

Taeadr — Tue, 18 Sep 2007 08:59:51 +0000

Hello

please check these addresses listed here : http://www.pentax.fr/_fr/photo/revendeurs.php?id=Ile_de_France

Regards.

Marq on "Shopping for Pentaxians in Paris"

Marq — Mon, 10 Sep 2007 08:13:40 +0000

No, I'm not looking to buy a French Pentaxian :-)
But I'd be greatful if someone could tell me what the best place is for buying Pentax related equipment in the city of lights.
Specifically, I'm looking for the Sigma APO 70-200mm F2.8 EX DG MACRO for K mount and a 1.4 Teleconverter.

Merci bien!