From: Luigi de Guzman [EMAIL PROTECTED]
On Tuesday 21 December 2004 18:15, mike wilson wrote:
. As with most imperial
measurements and their applications it was designed by engineers based
on practical experience, not the mutterings of a committee based on the
wavelength of a
- Original Message -
From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
.
I graduated high school in 1998 (that probably makes me the baby
here) and we
still used US fluid ounces in our photo lab--even if, right across
the hall,
we used liters and mL in chemistry
- Original Message -
From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
And, as my Dad likes to say,
it's something when you say a girl is 36-24-26, and something else
entirely
when you say she's 91-61-91.
nuts. that should be 36-24-36. But those of you reading
- Original Message -
From: Peter J. Alling
Subject: Re: Pentax lens screw sizes, help please
That's probably why Canada went fully metric, another thing you can
blame us for. ;-)
I am pretty sure that we went metric because Pierre Trudeau was so
anti American he would be buying bin
I never though that Trudeau was so much anti-American as he was
pro-Trudeau, but you could be right. My memory becomes hazy
some around the mid 70's...
William Robb wrote:
- Original Message - From: Peter J. Alling
Subject: Re: Pentax lens screw sizes, help please
That's probably why
://www.graywolfphoto.com
Idiot Proof == Expert Proof
---
William Robb wrote:
- Original Message - From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
Even living as I do in the USA, I'll take metric over imperial
measures any
day
Just the other day I was thinking how much more human oriented the Fahrenheit
system is. A human can make out fairly comfortably in temperatures from 0-100f
just by putting on or taking off normal clothing. Out side that range it
increasingly becomes a survival situation.
graywolf
- Original Message -
From: Graywolf
Subject: Re: Pentax lens screw sizes, help please
Now just when did you say you Cannuks adopted the metric system?
IIRC, 1978.
Or thereabouts.
William Robb
Subject: Re: Pentax lens screw sizes, help please
- Original Message -
From: Graywolf Subject: Re: Pentax lens screw sizes, help please
Now just when did you say you Cannuks adopted the metric system?
IIRC, 1978.
Or thereabouts.
It actually loolks like it took place somewhat earlier
PJA Americanized them anyway. They are way ahead of the metric system
PJA anyway, haven't you noticed that
Well, I guess that's your opinion. We here in Europe have no problems
counting in Metric at all and think it's way ahead of imperial system
;-)
Good light!
fra
I wrote:
Well, I guess that's your opinion. We here in Europe have no problems
counting in Metric at all and think it's way ahead of imperial system
;-)
Good light!
fra
I just reread it after sending, and I don't want others to think I was
patronizing or something. What I wanted
Hi,
PJA Americanized them anyway. They are way ahead of the metric system
PJA anyway, haven't you noticed that
Well, I guess that's your opinion. We here in Europe have no problems
counting in Metric at all [...]
not all of Europe. Here in the UK people of my generation and older are
like
Bob W wrote:
not all of Europe. Here in the UK people of my generation and
older are like some kind of measuring-system axolotls, stuck
forever in a transitional phase.
We accept post weight in grams, but still buy (or at least ask) for meat by
the pound or fraction thereof. We buy petrol
Well, I guess that's your opinion. We here in Europe have no problems
counting in Metric at all [...]
BW not all of Europe. Here in the UK people of my generation and older are
BW like some kind of measuring-system axolotls, stuck forever in a
BW transitional phase.
I am sorry for that
Hi,
Wednesday, December 22, 2004, 9:58:19 PM, Frantisek wrote:
Well, I guess that's your opinion. We here in Europe have no problems
counting in Metric at all [...]
BW not all of Europe. Here in the UK people of my generation and older are
BW like some kind of measuring-system axolotls, stuck
On 22/12/04, Bob W, discombobulated, unleashed:
Well, I guess that's your opinion. We here in Europe have no problems
counting in Metric at all [...]
not all of Europe. Here in the UK people of my generation and older are
like some kind of measuring-system axolotls, stuck forever in a
- Original Message -
From: Cotty
Subject: Re: Pentax lens screw sizes, help please
.
And it doesn't help that the road system is still based on miles! I
mean,
really.
My government issued drivers licence still indicates that I am 6'3
William Robb
Okay, one for the engineers on the list.
Do you know what the screw size is for a typical Pentax K mount lens -
the kind that hold the actual K mount bayonet flange onto the rear of the
lens?
I appreciate that lengths may vary according to lens, but the width and
the thread type seem to be
--- Cotty [EMAIL PROTECTED] wrote:
Do you know what the screw size is for a typical Pentax K mount lens -
the kind that hold the actual K mount bayonet flange onto the rear of the
lens?
There are 2 I am aware of - CNL-D2.0x2.5 and CNL-D2.0x3.5 (width length).
Almost
all lenses use
Stateside they would probably be called countersunk philips head machine
screws. That is without pulling one to look at it (it could be recessed instead
of countersunk). Probably 2-2.5mm.
OK, I just pulled one, it is a recessed binderhead phillips machine screw
graywolf
On 21/12/04, Graywolf, discombobulated, unleashed:
Stateside they would probably be called countersunk philips head machine
screws. That is without pulling one to look at it (it could be recessed
instead
of countersunk). Probably 2-2.5mm.
OK, I just pulled one, it is a recessed binderhead
OK, I just pulled one, it is a recessed binderhead phillips machine screw
Make that a JIS Crosspoint screw, not Philips. From my recent lens repair
education.
I replaced a wrecked flange mount screw with a longer slot head screw from
a dead Soligor. It fit fine.
Powell
On 21/12/04, Powell Hargrave, discombobulated, unleashed:
Make that a JIS Crosspoint screw, not Philips. From my recent lens repair
education.
I replaced a wrecked flange mount screw with a longer slot head screw from
a dead Soligor. It fit fine.
Thanks Powell
Cheers,
Cotty
___/\__
||
Graywolf wrote:
OK, I just pulled one, it is a recessed binderhead phillips machine screw
In the UK, sometimes called panhead or, if somewhat thicker,
cheesehead. Also called setscrews. Good series of diagrams here:
http://www.smithfast.com/iscrew.htm
Screws on Pentax lenses will certainly
On Tuesday 21 December 2004 18:15, mike wilson wrote:
. As with most imperial
measurements and their applications it was designed by engineers based
on practical experience, not the mutterings of a committee based on the
wavelength of a particular colour of light.
mike
so that would
- Original Message -
From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
Even living as I do in the USA, I'll take metric over imperial
measures any
day. Perhaps someday even this country will go to a hard metric
system--the
journey of a ten thousand li* begins
Those definitions of imperial measure haven't been used in about 500
years. The founders more or less
Americanized them anyway. They are way ahead of the metric system
anyway, haven't you noticed that
they're binary. (Whereas the meter is actually based on an old French
yard, which was then
That's probably why Canada went fully metric, another thing you can
blame us for. ;-)
William Robb wrote:
- Original Message - From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
Even living as I do in the USA, I'll take metric over imperial
measures any
day
On Tuesday 21 December 2004 23:51, William Robb wrote:
- Original Message -
From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
Even living as I do in the USA, I'll take metric over imperial
measures any
day. Perhaps someday even this country will go
On Wednesday 22 December 2004 00:22, Peter J. Alling wrote:
Those definitions of imperial measure haven't been used in about 500
years. The founders more or less
Americanized them anyway. They are way ahead of the metric system
anyway, haven't you noticed that
they're binary. (Whereas the
de Guzman wrote:
On Tuesday 21 December 2004 23:51, William Robb wrote:
- Original Message -
From: Luigi de Guzman
Subject: Re: Pentax lens screw sizes, help please
Even living as I do in the USA, I'll take metric over imperial
measures any
day. Perhaps someday even this country
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