Takumar club

the_snark · 09-26-2008, 08:59 PM

Originally posted by Mike Cash

Snark, are you familiar with the aluminum foil "fix" for the K100D metering problem with M42 lenses? Basically you just tape a bit of foil over the electric contacts that surround the lens mount. You should be able to get the EV boost down quite a bit that way.

Mike, thanks for this info - I hadn't heard about it. I googled a bit but am still confused... hence my many questions!

Why does this work? Is the purpose of the contacts documented somewhere? Is it only the k100d that has this issue? Will I lose infinity focus?

As I (perhaps unlike you) also use KA mount lenses, maybe it's easier for me to just use exposure compensation.

**Eaglerapids** · 09-27-2008, 12:38 AM

I took a couple of much needed days off this week to go fishing, camped out Thursday night and got one of my favorite spots which I wouldn't have gotten on a weekend, even this late in the year. I grabbed these shots with my Super-Multi-Coated Takumar 135/3.5. Love this lens.

Mike Cash · 09-27-2008, 01:32 AM

Originally posted by the_snark

Mike, thanks for this info - I hadn't heard about it. I googled a bit but am still confused... hence my many questions!

Why does this work? Is the purpose of the contacts documented somewhere? Is it only the k100d that has this issue? Will I lose infinity focus?

As I (perhaps unlike you) also use KA mount lenses, maybe it's easier for me to just use exposure compensation.

I have no idea why it works; I only know that it does. I picked up the hint from someone else here on Pentax Forums and it was the single best bit of advice I got for the K100D. There's no issue with infinity focus unless you make the foil too thick.

Just fold a bit of foil over double or triple (for strength) and tear it so it fits nicely across the contacts. I found that covering the KA locking pin helps to hold it in place. A bit of scotch tape across the bottom, down toward the tripod screw hole, and across the side, toward the grip, serves to hold it in place. You can remove and replace it as needed a few times before the tape quits sticking. I always carried a bit of extra foil and a roll of scotch tape in my camera bag. Fortunately the K20D doesn't require it, and the K100D now is a K-mount dedicated glorified P&S for the wife and kiddies to use.

Zewrak · 09-27-2008, 02:14 AM

I got an idea. Why not paint the contacts with some colour that shorts them? Surely there are some colours that will have enough metal in it to keep them shorted?

Mike Cash · 09-27-2008, 02:23 AM

Originally posted by Zewrak

I got an idea. Why not paint the contacts with some colour that shorts them? Surely there are some colours that will have enough metal in it to keep them shorted?

Because then it would be a dedicated M42-only camera. The contacts are necessary for A-series and later lenses.

Pentax K20D
Super Takumar 85/1.9

Zewrak · 09-27-2008, 02:37 AM

Originally posted by Mike Cash

Because then it would be a dedicated M42-only camera. The contacts are necessary for A-series and later lenses.

And your point is?

Mike Cash · 09-27-2008, 05:31 AM

Originally posted by Zewrak

And your point is?

Look, it's just as big a mystery to me as it is to you why he would want to ruin a perfectly good camera by putting anything but Takumars on it. There are all kinds of odd people in the world.

Pentax K20D
SMC Takumar 55/1.8

Last edited by Blue; 02-01-2015 at 03:28 PM. Reason: missing image

jsherman999 · 09-27-2008, 05:46 AM

You can paint the bottom of the adapter to insulate it. That's how mine is.

kev.pride · 09-27-2008, 06:08 AM

I've seen a nice 55 f2 which is in better condition than my 55 f1.8.

Would it be a wise purchase.

regards

Mike Cash · 09-27-2008, 06:23 AM

Originally posted by jsherman999

You can paint the bottom of the adapter to insulate it. That's how mine is.

You have a flanged adapter?

Mike Cash · 09-27-2008, 06:24 AM

Originally posted by kev.pride

I've seen a nice 55 f2 which is in better condition than my 55 f1.8.

Would it be a wise purchase.

regards

Unless it is going to make you miss the rent this month or get a beating from somebody....why not?

OrenMc · 09-27-2008, 07:32 AM

Just a quick question for you folks about focusing. What kind of focusing screens do you have? Sorry about the qestion being ask here but I am a new fan of these lenses and was wondering if anyone had any special technique they are using.
My eyes aren't the best and I usually have contacts in.

Should have some photos later today to post. Haven't been out with my 85 for a couple weeks

jamonation · 09-27-2008, 03:12 PM

Originally posted by OrenMc

Just a quick question for you folks about focusing. What kind of focusing screens do you have? Sorry about the qestion being ask here but I am a new fan of these lenses and was wondering if anyone had any special technique they are using.
My eyes aren't the best and I usually have contacts in.

I wear glasses for nearsightedness. I recently purchased a 1.17x magnifying eyepiece (Nikon D-21M) for my K10D and use it all the time with my Takumars. There is a Pentax eyepiece as well but I can't get them here. I highly recommend it.

Let me know if you get that split focusing screen too, be interested in how it works out on your 85mm.

Oh, and some images from my 85mm, been lax with posting lately

Stratman · 09-27-2008, 03:22 PM

I just recd the Pentax magnifying eyecup, but haven't really tested it out yet. Hopefully will get a chance tomorrow.

OrenMc · 09-27-2008, 07:13 PM

Thanks for the info guys,

jamonation,
I'm nearsighted also. Nikon eye piece ? What ever works is what I am looking for. How much did that run you if I can ask? That just slide on doesn't it?

Stratman,
Thanks , let me know how it works out for you. The magnifier doesn't cost near the Katzeye. This is an option I am surely looking at. The split screen they advertise on ebay is cheap enough that if it doesn't work out it won't be too bad. I was hoping someone had already tried them. Was looking for a guinea pig.

Anyway, I was out today with my 85. Harsh light and showdows.

I was a wedding photographer for a second though.

Heres one for Mr. Cash

09-27-2008, 01:32 AM	#543
Mike Cash Veteran Member Join Date: Jan 2007 Location: Japan Photos: Gallery Posts: 6,950	Originally posted by the_snark Mike, thanks for this info - I hadn't heard about it. I googled a bit but am still confused... hence my many questions! Why does this work? Is the purpose of the contacts documented somewhere? Is it only the k100d that has this issue? Will I lose infinity focus? As I (perhaps unlike you) also use KA mount lenses, maybe it's easier for me to just use exposure compensation. I have no idea why it works; I only know that it does. I picked up the hint from someone else here on Pentax Forums and it was the single best bit of advice I got for the K100D. There's no issue with infinity focus unless you make the foil too thick. Just fold a bit of foil over double or triple (for strength) and tear it so it fits nicely across the contacts. I found that covering the KA locking pin helps to hold it in place. A bit of scotch tape across the bottom, down toward the tripod screw hole, and across the side, toward the grip, serves to hold it in place. You can remove and replace it as needed a few times before the tape quits sticking. I always carried a bit of extra foil and a roll of scotch tape in my camera bag. Fortunately the K20D doesn't require it, and the K100D now is a K-mount dedicated glorified P&S for the wife and kiddies to use. Last edited by Mike Cash; 09-27-2008 at 01:39 AM.

09-27-2008, 02:23 AM	#545
Mike Cash Veteran Member Join Date: Jan 2007 Location: Japan Photos: Gallery Posts: 6,950	Originally posted by Zewrak I got an idea. Why not paint the contacts with some colour that shorts them? Surely there are some colours that will have enough metal in it to keep them shorted? Because then it would be a dedicated M42-only camera. The contacts are necessary for A-series and later lenses. Pentax K20D Super Takumar 85/1.9 Last edited by Blue; 02-01-2015 at 03:27 PM. Reason: missing image

09-27-2008, 06:08 AM	#549
kev.pride Veteran Member Join Date: Feb 2008 Location: Modbury North, South Australia Photos: Gallery \| Albums Posts: 351	55 f2 I've seen a nice 55 f2 which is in better condition than my 55 f1.8. Would it be a wise purchase. regards

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09-26-2008, 08:59 PM	#541
the_snark Forum Member Join Date: Nov 2006 Location: Adelaide Posts: 54	Originally posted by Mike Cash Snark, are you familiar with the aluminum foil "fix" for the K100D metering problem with M42 lenses? Basically you just tape a bit of foil over the electric contacts that surround the lens mount. You should be able to get the EV boost down quite a bit that way. Mike, thanks for this info - I hadn't heard about it. I googled a bit but am still confused... hence my many questions! Why does this work? Is the purpose of the contacts documented somewhere? Is it only the k100d that has this issue? Will I lose infinity focus? As I (perhaps unlike you) also use KA mount lenses, maybe it's easier for me to just use exposure compensation.

09-27-2008, 12:38 AM	#542
Eaglerapids Site Supporter Join Date: Apr 2007 Location: Idaho,USA Photos: Gallery Posts: 1,619	I took a couple of much needed days off this week to go fishing, camped out Thursday night and got one of my favorite spots which I wouldn't have gotten on a weekend, even this late in the year. I grabbed these shots with my Super-Multi-Coated Takumar 135/3.5. Love this lens.

09-27-2008, 02:14 AM	#544
Zewrak Veteran Member Join Date: Mar 2008 Location: Nowhere, Sweden Photos: Gallery Posts: 654	I got an idea. Why not paint the contacts with some colour that shorts them? Surely there are some colours that will have enough metal in it to keep them shorted?

09-27-2008, 02:37 AM	#546
Zewrak Veteran Member Join Date: Mar 2008 Location: Nowhere, Sweden Photos: Gallery Posts: 654	Originally posted by Mike Cash Because then it would be a dedicated M42-only camera. The contacts are necessary for A-series and later lenses. And your point is?

09-27-2008, 05:31 AM	#547
Mike Cash Veteran Member Join Date: Jan 2007 Location: Japan Photos: Gallery Posts: 6,950	Originally posted by Zewrak And your point is? Look, it's just as big a mystery to me as it is to you why he would want to ruin a perfectly good camera by putting anything but Takumars on it. There are all kinds of odd people in the world. Pentax K20D SMC Takumar 55/1.8 Last edited by Blue; 02-01-2015 at 03:28 PM. Reason: missing image

09-27-2008, 05:46 AM	#548
jsherman999 Veteran Member Join Date: Dec 2007 Photos: Gallery Posts: 8,237	You can paint the bottom of the adapter to insulate it. That's how mine is.

09-27-2008, 06:23 AM	#550
Mike Cash Veteran Member Join Date: Jan 2007 Location: Japan Photos: Gallery Posts: 6,950	Originally posted by jsherman999 You can paint the bottom of the adapter to insulate it. That's how mine is. You have a flanged adapter?

09-27-2008, 06:24 AM	#551
Mike Cash Veteran Member Join Date: Jan 2007 Location: Japan Photos: Gallery Posts: 6,950	Originally posted by kev.pride I've seen a nice 55 f2 which is in better condition than my 55 f1.8. Would it be a wise purchase. regards Unless it is going to make you miss the rent this month or get a beating from somebody....why not?

09-27-2008, 07:32 AM	#552
OrenMc Veteran Member Join Date: Apr 2008 Location: USA Photos: Gallery Posts: 1,901	Just a quick question for you folks about focusing. What kind of focusing screens do you have? Sorry about the qestion being ask here but I am a new fan of these lenses and was wondering if anyone had any special technique they are using. My eyes aren't the best and I usually have contacts in. Should have some photos later today to post. Haven't been out with my 85 for a couple weeks

09-27-2008, 03:12 PM	#553
jamonation Veteran Member Join Date: Jun 2008 Location: Toronto Photos: Gallery Posts: 364	Originally posted by OrenMc Just a quick question for you folks about focusing. What kind of focusing screens do you have? Sorry about the qestion being ask here but I am a new fan of these lenses and was wondering if anyone had any special technique they are using. My eyes aren't the best and I usually have contacts in. I wear glasses for nearsightedness. I recently purchased a 1.17x magnifying eyepiece (Nikon D-21M) for my K10D and use it all the time with my Takumars. There is a Pentax eyepiece as well but I can't get them here. I highly recommend it. Let me know if you get that split focusing screen too, be interested in how it works out on your 85mm. Oh, and some images from my 85mm, been lax with posting lately

09-27-2008, 03:22 PM	#554
Stratman Veteran Member Join Date: Mar 2007 Location: St Louis, Missouri U S A Photos: Gallery \| Albums Posts: 2,464	I just recd the Pentax magnifying eyecup, but haven't really tested it out yet. Hopefully will get a chance tomorrow.

09-27-2008, 07:13 PM	#555
OrenMc Veteran Member Join Date: Apr 2008 Location: USA Photos: Gallery Posts: 1,901	Thanks for the info guys, jamonation, I'm nearsighted also. Nikon eye piece ? What ever works is what I am looking for. How much did that run you if I can ask? That just slide on doesn't it? Stratman, Thanks , let me know how it works out for you. The magnifier doesn't cost near the Katzeye. This is an option I am surely looking at. The split screen they advertise on ebay is cheap enough that if it doesn't work out it won't be too bad. I was hoping someone had already tried them. Was looking for a guinea pig. Anyway, I was out today with my 85. Harsh light and showdows. I was a wedding photographer for a second though. Heres one for Mr. Cash