AF extensions tubes - was Why Pentax *ist (35mm) isn't good?
Why would they correct the aperture value for the extension? This is just the same as having your lens at minimum focusing distance, surely the meter just reads that as less light coming through? Paul Ewins Melbourne, Australia -Original Message- From: Alin Flaider [mailto:[EMAIL PROTECTED] Do the Kenko AF tubes correct the transmitted aperture value with the extension tube's factor? - otherwise it messes with multisegment metering and it's pretty much useless. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.488 / Virus Database: 287 - Release Date: 5/06/2003
Re: Why Pentax *ist (35mm) isn't good?
Hi Jose, on 19 Jun 03 you wrote in pentax.list: I'm new in the forum, and it seems that the new Pentax *ist (35mm) is not a favourite among forum members. Can anybody explain me in a few words why? In addition to Len's and Grawolf's replies: The *ist has mount, that doesn't support older SMC/SMC-M lenses (non-A-lenses). There are many useres who don't like this idea (some of them have a notable number of those lenses and they are disappointed that the *istD won't support them in a sensible way). But if I remember correctly then you are using only A-lenses. So this issue won't be a problem for you. In other words, may I buy that camera, or the Nikon 75 or even the veteran Canon EOS 300 are better choices? I would prefer the *ist. The F75's viewfinder is terrible and I don't like Canon's user interface. I have tried the *ist on the Cebit this year and I was impressed by the fast AF, the good viewfinder and the ergonomic user interface. It has the most sophisticated AF system of all. There is one thing all these entry-level camera's have in common: they look and feel quite cheap because of their silver plastics finishing. Not comparable to a solid Super A...;-) Cheers, Heiko
Re: Why Pentax *ist (35mm) isn't good?
How about the auto extension tubes? The non-auto ones will work, of course - but auto ext. tubes behaves like KM lenses, afaik. If they won't work, I guess it's time for a new - A, maybe even FA - version. Alex
Re: Why Pentax *ist (35mm) isn't good?
Alex. The Kenko tubes have the AF 'screwdriver' connection. Plus all the electrical connections. And they are available in PAF. Kind regards Peter
Re: Why Pentax *ist (35mm) isn't good?
Yes, of course - I was talking about the Pentax tubes, as I really think they should be compatible with *ist, at least with *istD. I guess Pentax should upgrade them (at least as A variants), because some people will want to use them with *ist cameras; and I'm more than reasonable asking that (instead of full-mount compatibility). Btw: I have the Pentax auto ext tubes set; paid 39$ sh. Btw: I saw the *ist in a store (in Romania, I mean); I looked at it only a few minutes. It's so small... I think, smaller than MZ-60. It's also very light, and I didn't liked the wheel and the on/of/DOF switch. The lens mount is metal, but the base plate seems to be polycarbonate. The body is... well... cheap, you can scratch it easily - even the MZ-6 is much better. However, the viewfinder seems to be nicer than MZ-6's one, with a larger eyepiece (I think). - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, June 19, 2003 3:04 PM Subject: Re: Why Pentax *ist (35mm) isn't good? Alex. The Kenko tubes have the AF 'screwdriver' connection. Plus all the electrical connections. And they are available in PAF. Kind regards Peter
Re[2]: Why Pentax *ist (35mm) isn't good?
Do the Kenko AF tubes correct the transmitted aperture value with the extension tube's factor? - otherwise it messes with multisegment metering and it's pretty much useless. Anyway, for this very reason, the A variety of tubes doesn't make any sense and we probably won't see it from Pentax. Instead, they'll come up directly with the FAJ tubes, that is if Pentax ever sees in its FAJ customers a potential market for specialty tools as macro tubes. Servus, Alin Peter wrote: Cac The Kenko tubes have the AF 'screwdriver' connection. Plus all the electrical Cac connections. Cac And they are available in PAF.
