 |
|
| View previous topic :: View next topic |
| Author |
Message |
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
 Posted: Sat Sep 15, 2007 6:35 pm Post subject: New old light meter Gossen SIXON 2 |
 |
|
I've recovered my old lighmeter.
Unfortunately, the battery is out and I cannot test it. It was made of a CdS cell, so I have little expectations.
Besides this, the battery is one of those "extinct" ones, a PX625 one.
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
 |
bob955i
Joined: 15 Apr 2007
Posts: 1852
Location: Scotland
|
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Sat Sep 15, 2007 8:35 pm Post subject: |
|
|
Bob, thanks a lot!
I love those diode tricks... Let's experiment!
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Sat Sep 15, 2007 11:58 pm Post subject: |
|
|
Up and running... It has an adjustmen knob on the backside that allows to work with batteries over than 1.35volt.
Now I've got a nice light meter 
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
bob955i
Joined: 15 Apr 2007
Posts: 1852
Location: Scotland
|
| Posted: Sun Sep 16, 2007 9:23 am Post subject: |
|
|
It's best to use a silver oxide cell rather than alkaline as the silver oxide has a similar, though not identical, discharge rate to mercury, unlike alkaline which gradually drops.
What this means in practice is that with an alkaline cell, your meter will over-read to begin with, thus resulting in under-exposure, and as the cell discharges, it will reach a point where it will read correctly, and then as the cell voltage drops further, will under-read, giving you over-exposure. |
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Sun Sep 16, 2007 7:28 pm Post subject: |
|
|
| bob955i wrote: | It's best to use a silver oxide cell rather than alkaline as the silver oxide has a similar, though not identical, discharge rate to mercury, unlike alkaline which gradually drops.
What this means in practice is that with an alkaline cell, your meter will over-read to begin with, thus resulting in under-exposure, and as the cell discharges, it will reach a point where it will read correctly, and then as the cell voltage drops further, will under-read, giving you over-exposure. |
Ok, Bob, understood. I'll go for silver-oxide cells. Thanks for pointing it!.
On the other hand, I've been thinking on putting a voltage regulator inside the light meter (there is some room inside), so the variations on the battery voltage would be not relevant at all... But I don't have an schematic yet...
Silver oxide until a better solution.
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
bob955i
Joined: 15 Apr 2007
Posts: 1852
Location: Scotland
|
| Posted: Sun Sep 16, 2007 8:18 pm Post subject: |
|
|
I was looking at a schematic the other day Jesito - I'll see if I can find it again.  |
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Sun Sep 16, 2007 9:16 pm Post subject: |
|
|
| bob955i wrote: | | I was looking at a schematic the other day Jesito - I'll see if I can find it again. |
Thanks! I think I got something in that line...
http://www.sover.net/~snowleop/merc/
Well, it's not a schematic, but if someone has done it, should be workable!
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
bob955i
Joined: 15 Apr 2007
Posts: 1852
Location: Scotland
|
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Mon Sep 17, 2007 6:06 pm Post subject: |
|
|
Thanks!. A little clumsy to fit inside a battery holder with a smaller battery, but nice to try!.
Lots of fun... for sure!
Many thanks
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
bob955i
Joined: 15 Apr 2007
Posts: 1852
Location: Scotland
|
| Posted: Mon Sep 17, 2007 7:11 pm Post subject: |
|
|
| It's actually more a permanent feature for fitting somewhere inside the camera, rather than in the battery holder. |
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Mon Sep 17, 2007 9:24 pm Post subject: |
|
|
| bob955i wrote: | | It's actually more a permanent feature for fitting somewhere inside the camera, rather than in the battery holder. |
True, it covers my two current needs, the lightmeter and the Konica C35.
Both should have room inside.
But I found a handful of 1,5 volt small batteries and I started to wonder how to fit the circuit in an adaptor... Full SMD.
I'll be doing bricolage in short.
Best regards,
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
patrickh
Joined: 23 Aug 2007
Posts: 3659
Location: Oregon
|
| Posted: Mon Sep 17, 2007 9:45 pm Post subject: |
|
|
Wow - technobabble at its best. I am really impressed. I have a Zeiss Ikophot that is at least 40 years old uses a photocell and still works like a charm.
_________________
DSLR: Nikon D70 Nikon D200 Canon 40D
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, Nikkor 200/4 AI, 200/4 AIS micro, 3004.5 AI, 300/4.5 AI ED, Kiron 28/2 Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Flektogon 35/2.4, Takumar 35/3.5, Curtagon 35/4, Arsat 50/1.4, Volna-6 50/2.8 macro,Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Jupiter 135/4, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Takumar 150/4, Jupiter 200/4
Exakta: Topcon 100/2.8, 35/2.8
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8 |
|
| Back to top |
|
|
bob955i
Joined: 15 Apr 2007
Posts: 1852
Location: Scotland
|
| Posted: Tue Sep 18, 2007 5:37 pm Post subject: |
|
|
| patrick wrote: | | I have a Zeiss Ikophot that is at least 40 years old uses a photocell and still works like a charm. |
Sometimes less is more - I have a 45 year old Rank Mamya 4B RF which has a selenium cell meter and it's still as accurate as my Gossen Lunasix 3 after all these years.
If you're going to use SMD components throughout, you should just about be able to fit it all inside the full stop at the end of this sentence.....  |
|
| Back to top |
|
|
Jesito
Joined: 24 Aug 2007
Posts: 2476
Location: Sitges, (Spain)
|
| Posted: Tue Sep 18, 2007 9:19 pm Post subject: |
|
|
| bob955i wrote: | Full SMD.
If you're going to use SMD components throughout, you should just about be able to fit it all inside the full stop at the end of this sentence..... |
Jes.
_________________
Jesito's backsack:
Zooms Sigma 18-200, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro (Adaptall)
Fixed CZJ Planar 50mm 1.7, Helios 44-2, Cosinon 28mm, CZJ Sonnar 135, Industar-61, Jupiter-9, Industar-50, CZJ Pancolar 50/1.8, Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Weltblick 135mm
DSLR Canon 350D, Pentax *1stDS, SIGMA SD9, SIGMA
TLR/6x6/645 YashicaMat, Mamiya 645E, Petri 6x45, Nettar
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, Pentax SF7, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S,
Rangefinders Chinon 35EE, Konica C35 auto, Olympus 35RC, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3, Regula Cita III, Voigtlander Vitoret LR, Welta Welti-I, Argus C4, Kodak Signette 25, Zorki-4, Bessa-R
Compact Film Konica C35V, Voigtlander Vitorets, Minox 35 ML, Canon Prima Super 105
Compact Digital Caplio GX100, Aiptek Slim 3000, Canon Powershot 520
Life is that boring wasted time in between two pictures |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
FAQ
Search
Memberlist
Usergroups
Rss feed
Register
Profile
Log in to check your private messages
Log in
