Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,206   Posts: 1,531,830   Online: 900
      
Page 2 of 6 FirstFirst 123456 LastLast
Results 11 to 20 of 60
  1. #11
    ann
    ann is offline

    Join Date
    Sep 2002
    Shooter
    35mm
    Posts
    2,866
    Images
    26
    I posted one of the Kodak classic ones a few weeks ago here on Apug. Asked a lot less than the one listed on ebay. If interested pm me.
    http://www.aclancyphotography.com

  2. #12

    Join Date
    Oct 2008
    Location
    East Coast, USA
    Shooter
    Multi Format
    Posts
    94
    I have had great success with brand new DeltaTrak Auto-Cal Digital Pocket Probes. I have two of them (~$37 USD) and they're easy to come by. The read out is immediate and with an accuracy of + or - 1 degree Fahrenheit, they're perfect for C41 and E6.

  3. #13

    Join Date
    Jul 2010
    Location
    Southern USA
    Shooter
    Multi Format
    Posts
    3,769
    Quote Originally Posted by BMbikerider View Post
    Absolute accuracy is not essential. What is essential is consistency..
    While this may be true for BW it is not true for color. Note Kodak's temperature requirements for their various color processes. They are quite restrictive if one wants good results.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

  4. #14
    Greg Davis's Avatar
    Join Date
    Feb 2004
    Location
    Crestview Hills, KY
    Shooter
    8x10 Format
    Posts
    1,903
    I use both a Kodak Process thermometer and a Paterson Color thermometer available from B&H for about $25. They match at the temperatures needed for color work, so I usually use the Paterson just in case I drop it, it is easily replaced.
    www.gregorytdavis.com

    Did millions of people suddenly disappear? This may have an answer.

    "No one knows that day or hour, not even the angels in heaven, nor the Son, but only the Father." -Matthew 24:36

  5. #15
    wogster's Avatar
    Join Date
    Nov 2008
    Location
    Bruce Peninsula, ON, Canada
    Shooter
    35mm
    Posts
    1,266
    Quote Originally Posted by Gerald C Koch View Post
    For several years when I was processing color reversal film I used an ordinary mercury lab thermometer. Never had any problem either with density or color balance.
    The issue though isn't that your thermometer is within ⅛℉, it's that it's consistent. For example most glass thermometers have a fluid and a scale, the fluid expands as it's temperature raises, and contracts as it's temperature drops, the scale is then marked so that when the temperature is a certain point, the scale reads that point. If your scale says 100℉ and it's actually 100.5℉ that is okay, as long as the next time it reads 100℉ the temperature is actually 100.5℉. Your work flow will adapt to any shifts caused by the thermometer being a little off. Where it gets difficult, is if the next time you look at your thermometer and it says 100℉ it's actually 99.5℉ Because it's not consistent, your work flow can't adapt for any shifts, because the shifts are not consistent. Glass thermometers tend to always read the same, if they are off +.5℉ when new, then when you drop it and break it it will still be off +.5℉. The mechanical dial type were notorious for reading differently, some would read differently for different readings, some simply drifted as they aged. Digital ones can also drift as they age, the glass ones tended to remain accurate, but tended to get dropped after a while and break.
    Paul Schmidt
    See my Blog at http://clickandspin.blogspot.com

    The greatest advance in photography in the last 100 years is not digital, it's odourless stop bath....

  6. #16

    Join Date
    Apr 2008
    Location
    Escondido, California, USA
    Shooter
    35mm RF
    Posts
    654
    I'll +1 the suggestion for the Paterson Color Thermometer sold by B&H here:
    http://www.bhphotovideo.com/c/produc...ermometer.html
    Claimed accuracy is +/- 0.14 C. If you've ever used a slide-rule, then you can estimate tenths of degrees C with the scale on this thermometer.

    Mark Overton

  7. #17

    Join Date
    Nov 2004
    Location
    The highest state
    Shooter
    Multi Format
    Posts
    1,887
    Quote Originally Posted by Greg Davis View Post
    I use both a Kodak Process thermometer and a Paterson Color thermometer available from B&H for about $25. They match at the temperatures needed for color work, so I usually use the Paterson just in case I drop it, it is easily replaced.
    I had a Kodak one up until about two weeks ago. I got done using it, went to put it back into the 1 liter graduate that I typically stored it in and it slipped out of my hand and fell about 4" inches into the graduate and cracked.

    I will never waste my money on one of those again, my cheaper dial ones all read the same as the fragile Kodak one anyway, just as fast and just as accurate...

  8. #18
    Ken Nadvornick's Avatar
    Join Date
    Mar 2005
    Location
    Monroe, WA, USA
    Shooter
    Multi Format
    Posts
    3,165
    Images
    48
    Keep in mind that some of the bi-metal dial thermometers have an adjustment nut on the backside of the dial casing. These can be very handy if you are standardized on a specific reference thermometer in your work. Or as you can imagine, they can also be a royal pain in the butt if they unknowingly fall out of calibration while being banged around.

    The large dial Weston thermometers have these adjustment nuts. I found that mine would need to be checked and adjusted frequently enough that I just made it a regular part of my development routine. Eventually I got tired of that extra step, so I calibrated my inexpensive glass Kodak Darkroom Thermometer to 68F/20C* against my reference and now use that. It never goes out of calibration. But I do need to be more careful.

    Ken

    * 68F/20C on my reference thermometer registers as 69.6F/20.9C on my Kodak instrument.
    Last edited by Ken Nadvornick; 10-15-2012 at 06:14 PM. Click to view previous post history. Reason: Spelling...
    "They are the proof that something was there and no longer is. Like a stain. And the stillness of them is boggling. You can turn away but when you come back they’ll still be there looking at you."

    — Diane Arbus, March 15, 1971, in response to a request for a brief statement about photographs

  9. #19

    Join Date
    Nov 2006
    Shooter
    35mm
    Posts
    117
    I bought a $10 digital cooking thermometer at Walmart, and have processed over E-6 100 rolls in the last 1.5 years using the Kodak, Tetenal, and Arista kits, with no problems. This, combined with a $3 styrofoam cooler with water overflow holes punched in the top has served me well for temp control.
    As a side note, I suggest the Tetenal E-6 kit from Freestyle Photo, it gives much better results than the Arista. (Kodak kits being long gone...)

  10. #20
    Roger Cole's Avatar
    Join Date
    Jan 2011
    Location
    Suburbs of Atlanta, GA USA
    Shooter
    Multi Format
    Posts
    3,829

    Thermometer for Color Processing?

    Quote Originally Posted by pukalo View Post
    I bought a $10 digital cooking thermometer at Walmart, and have processed over E-6 100 rolls in the last 1.5 years using the Kodak, Tetenal, and Arista kits, with no problems. This, combined with a $3 styrofoam cooler with water overflow holes punched in the top has served me well for temp control.
    As a side note, I suggest the Tetenal E-6 kit from Freestyle Photo, it gives much better results than the Arista. (Kodak kits being long gone...)
    I bought and own two of those inexpensive digital thermometers. They disagree by more then three degrees, at least at black and white temperatures. The better one agrees to within less than 1/2 degree (about .3-.4) with my glass Patterson color thermometer, so I use that one.

    Some of those are good but you must verify as some are also pretty far off.

Page 2 of 6 FirstFirst 123456 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin