Looking for Good, Fast Thermometer

Recent Classifieds

Forum statistics

Threads
199,347
Messages
2,790,070
Members
99,877
Latest member
revok
Recent bookmarks
0
Joined
Dec 12, 2019
Messages
219
Location
Potomac, MD
Format
Medium Format
I have a couple of cheapo cooking probe thermometers that I use for C-41 and other processes. I'm not all that confident in them, partly because they take so much time to settle, if they ever do. Between those, my IR gun, and my sous vide, I have 3 completely different measurements to choose from at any given moment. It would be nice to have just one.

What do you recommend for a thermometer, accurate and fast enough for use in C-41, E-6, and other processes, where tight temperature control is required?
 

radiant

Member
Joined
Aug 18, 2019
Messages
2,135
Location
Europe
Format
Hybrid
I assume DIY is not good but I've built myself a digital thermometer out of TMP36 sensor. The sensor "head" is unprotected and the wires are epoxy glued to protect from water. It reacts pretty fast to temperature changes when adjusting correct water from tap.
 

AgX

Member
Joined
Apr 5, 2007
Messages
29,973
Location
Germany
Format
Multi Format
For C-41 the most easy to acquire, most cheap, most precise thermometer is a clinical contact-thermometer. Only disadvantage is its maximum-hold feature.

Otherwise any glass stem thermometer that fits your range and resolution requirements. I use lab-grade ones.
 

AgX

Member
Joined
Apr 5, 2007
Messages
29,973
Location
Germany
Format
Multi Format
For those who find the glass stem ones bad in handling, I advise the simple Greininger digital probe thermometer, same resolution and precision as the lab glass stem ones.
 

wiltw

Subscriber
Joined
Oct 4, 2008
Messages
6,460
Location
SF Bay area
Format
Multi Format
Way back in the Dark Ages (50 years ago) the standard bearer for accurate thermometers was a large Westin thermometer. Stainless steel dial thermometer accurate to 1/4°F. between 68° and 80°...what I used for critical control of color chemistry. It has an xxclusive mirroband dial eliminates parallax error in readings. You get one new for about $40
 
Last edited:

AgX

Member
Joined
Apr 5, 2007
Messages
29,973
Location
Germany
Format
Multi Format
That is interesting. Over here I only know dial&pointer thermometers for houshold use and on machinery or installations, but not being used in chemistry or photo labs.
 

wiltw

Subscriber
Joined
Oct 4, 2008
Messages
6,460
Location
SF Bay area
Format
Multi Format
Last edited:

btaylor

Subscriber
Joined
Dec 28, 2010
Messages
2,258
Location
Los Angeles
Format
Large Format
Kodak Process Thermometer. That's the standard I use. I calibrate all the other thermometers to that one.
 

Greg Kriss

Member
Joined
Oct 8, 2015
Messages
38
Format
ULarge Format
Kodak Process Thermometer. That's the standard I use. I calibrate all the other thermometers to that one.
Agree... I have 3 of them. 2 of them to check against each other and rotate use of. 3rd one "in storage" if one of the other 2 breaks (it can happen, trust me). They are getting harder and harder to find. I think they were last offered for sale new from Kodak around 2005, but I could be way off on that date.
 

DREW WILEY

Member
Joined
Jul 14, 2011
Messages
14,132
Format
8x10 Format
The Kodak Process Thermometer, Type II, is the gold standard. These sometimes turn up even unused, but pre-owned, affordably. Otherwise, new thermometers of equivalent quality and accuracy can be obtained from specialty houses like LSS (Lab Safety Supply) in the $250 range or higher. Make sure any model being considered is calibrated for the specific temp range characteristic of photographic applications, like the Kodak version is. These are much faster and easier to use than electronic thermometers, and no fuss to maintain like electronic ones, and are protected by a solid stainless sheath. Forget about the cheapo camera store varieties if you need true accuracy.
 

wiltw

Subscriber
Joined
Oct 4, 2008
Messages
6,460
Location
SF Bay area
Format
Multi Format
The Kodak Process Thermometer, Type II, is the gold standard. These sometimes turn up even unused, but pre-owned, affordably. Otherwise, new thermometers of equivalent quality and accuracy can be obtained from specialty houses like LSS (Lab Safety Supply) in the $250 range or higher. Make sure any model being considered is calibrated for the specific temp range characteristic of photographic applications, like the Kodak version is. These are much faster and easier to use than electronic thermometers, and no fuss to maintain like electronic ones, and are protected by a solid stainless sheath. Forget about the cheapo camera store varieties if you need true accuracy.

IIRC, the Type II was mercury column. So they came out with Type III, which was not containing mercury, and which no longer had the protective metal sheath!
 

DREW WILEY

Member
Joined
Jul 14, 2011
Messages
14,132
Format
8x10 Format
We once had a dealer for exclusively thermometers in the local warehouse district. He resembled a pale-faced zombie or vampire which hadn't been in sunlight seemingly forever, in a dimly lit but ample sized facility housing hundreds of kinds of thermometers in multiples of quantity. Since that city had both a major University (UCB), and National Lab, and was rapidly becoming the world epicenter of Pharmaceutical and Biotech R&D, there was a steady demand for all kind of high-grade thermometers. But the most accurate and extreme types, like both the Lawrence Livermore and Berkeley Labs potentially used, capable of measuring extremes hotter than the sun, or nearing absolute zero with extreme precision, were obviously not the kind of thing one can purchase off a warehouse shelf. After he passed away, that poorly-maintained warehouse space with all its flaking paint got invaded by a squatters-rights type of art colony, with most of their "art" seemingly transpiring only in their own imaginations after imbibing certain hallucinogens. The city bided their time until official renovation plans were in play. But prior to the need for eviction, that "artiste colony" firetrap predictably burned down on its own, and was subsequently replaced by an obscenely expensive highrise condo development. Now everyone is going pale; the streets themselves now seem more like tunnels, with all the sunlight blocked by highrises on either side. Full circle.
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom