Home pentax user forum pentax digital slrs forum lens calibration focus tune software. Lens calibration software may 23, 2009 am wanting to calibrate a lens or two for 3d imaging software purposes, for estimating lens distortion. You can read further about the exposure meter calibration constants. A couple of years ago i bought a pentax spotmeter v from a colleague and became interested about the history of pentax spotmeters. Focal features focal runs on windows or mac computers and controls your camera to calibrate. Pentax spotmeter v film camera batteries at batteries plus. Pentax analog spotmeter v calibration hey guys, not entirely sure this is the best place to put this, but i was wondering if theres any way to validate the calibration of an analog spotmeter v, and if its found to be off for recording exposure, a procedure for calibrating the spotmeter for accurate reads. Hello, is there a diy way to calibrate pentax digital spotmeter using another meter as a reference. Your sekonic is an incident meter, your pentax is a refelcted spot meter. This device fits down inside the asahi pentax spotmeter 211 and the pentax spotmeter iiis px640 battery compartment, accepts the three volts of a cr1632 lithium cell, and regulates the voltage to a.
Other than cursing, any suggestions how i might be able to get one or is there some sort of alternative. A few years ago my first spot meter took a bath in a river, but it was rebuilt and recalibrated by pentax. You thus need to spot meter a gray card with the pentax meter in the same light you are taking the sekonic reading in. Let your spot meter do the work alan ross photography. Pentax spotmeter v and luminance questions discussion in exposure discussion started by fl guy. Pentax spotmeter v film camera batteries from batteries plus bulbs. As of 2006 the best meter for any film camera is a calibrated digital camera. Unfollow pentax digital spotmeter to stop getting updates on your ebay feed. Is there a standard method to test the calibration of a handheld spotmeter. The reason i ask is that my spotmeter v disagrees with the spot meter in my canon dslr metering a large mid gray area that filled the frame in both cases and still does so following calibration. Quality light metric in hollywood has been servicing all my meters for nearly 20 years and in fact i just recently sent george my 2 pentax. Make offer pentax spot meter original model 321 asahi honeywell spotmeter.
Any one know of a company in the uk able to calibrate my pentax spotmeter v light meter. Digital spotmeter camera accessories pdf manual download. Hi folks, i have a digital pentax spotmeter the sort that has a red read out of the ev. The slope is fine it seems to be off by the same 23 of a stop on the top and the bottom of the scale.
One stop difference between pentax spotmeter v and soligor. As i discussed in a previous blog, effective application of the zone system zs really requires the use of a reliable handheld spot meter. So i started looking for earlier versions of the spotmeter and found. Reikan focal is a software tool that takes control of your camera, guides you through the setup and fully calibrates your camera autofocus with minimal interaction from you.
Ive looked at how much the meters go for nowadays and am shocked. The difference is the hole in the mirror and the placement of the photodiode. Hello, is there a diy way to calibrate pentax digital. In the asahi pentax spotmeter an ire scale is incorporated for comparison of the. Favorite spot meter photo accessories bags meters tripods etc.
Can anyone recommend a good place to get it checked over and calibrated in the uk. How do you testadjust a handheld spotmeters calibration. Anyone know of a piece of software to do this, or perhaps how to go about doing it. I replaced the bulky gossen pro with the lighter pentax digital spotmeter and then replaced the easy to use compact pentax with the featureladened but heavier sekonic 508. I always use the matrix meter in my slr and shoot in program automatic. Full text of asahi spotmeter iii manual internet archive. You cannot simply meter any available object, as its reflectance could be significantly higher or lower than neutral gray or zone v. Sekonic speedmaster l858du light meter 401858 urceri light meter digital illuminance meter. Once you use this tool, you are stuck for life with it. Pentax analog spotmeter v calibration hey guys, not entirely sure this is the best place to put this, but i was wondering if theres any way to validate the calibration of an analog spotmeter v, and if its found to be off for recording exposure, a procedure for calibrating the spotmeter. On a weekend shoot with others, my meter seemed to be 2 stops out compared with others. How confident are you of the pentax being incorrect. Add that screw and canon causes themselves endless hours of please fix my lense, i dont know what.
View and download pentax digital spotmeter manual online. Ricoh has announced that it will release the ricoh theta stick tm2 and ricoh theta stick tm3, s. Would like ask the owner of this spotmeter for your opinions about this spotmeter. Hou to use pentax spotmeter 1970s exposure meter duration. He calibrated my pentax spot meter the analog version got the tiny light illuminating the internal. Anyone know what pot adjusts the pentax spots y intercept for the scale. And because i like the principle of spotmetering i decided to buy either the pentax digital spotmeter or the minolta m spotmeter. Pentax spotmeter v instruction manual, user manual, pdf. Archive favorite spot meter photo accessories bags meters tripods etc. Our full service calibration lab offers iso 17025 accredited ukas.
There are basically two kinds of spot meters, those. This will help me to continue to host this site, buy new manuals, and pay their shipping costs. That doesnt do you much good in new zealand though. Viewing screen with highlow light scale calibrations, battery checker mark and 1. The photos have to be developed in postprocessing and there are numerous options regarding the software and within the software.
The asahi pentax spotmeter helps select proper filters. I got a pentax digital spotmeter and i want to figure out if the readings are accurate and, if not, if there a way to calibrate. The difference is the hole in the mirror and the placement of. Replacement batteries for 35mm cameras, flash and film photography equipment. The hole is probably 316 diameter but the photodiode is quite large, its window is probably 18 around. Weighing no more than the average 50mm f1,4 lens, this highly portable spotmeter is the portable tool for precision exposure measurement. I got a pentax digital spotmeter and i want to figure out if the readings are accurate and, if not, if there a way to calibrate the meter. The readings between the two are different by 23 stop. Put the filter over the objective lens of the spotmeter and read the difference in the l. The second group of manufacturers pentax, minolta, kenko assumes that the medium tone is approximately 0. I already have one, and the price was right to have a second one as backup. Im thinking of getting a pentax digital spotmeter for learning and better evaluate the shoot scenes. Quality light metric in hollywood has been servicing all my meters for nearly 20 years and in fact i just recently sent george my 2 pentax spotmeters both zone vi modified for recalibration after a long period of non use. For sale my lovely pentax analog spotmeter v which i no longer need.
The memory of light photo essay by takumichi seo,featuring works created through his unique sensibilities and the imaging power of his pentax camera. Pentax has created a kp which supports both infrared capture and everyday photography. I needed to change the battery and managed to drop the battery cover in a stream, gone forever. Dear all, we know that the k1 is a great camera if we shoot raw maybe the best you can get.
Digital camera pc application software os compatibility. I just took delivery of a used pentax spot meter analog. International light has been offering light meter calibration services since we created the first usamade light measurement system in 1965. I have never heard of a spot meter requiring calibration. Pentax v spotmeter missing battery cap photography. Yeah, the pentax spot meter looks at a 1 degree spot, making it useful for. Home pentax user forum troubleshooter forum light meter calibration.
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