Warranty Information The SH-T2 is made in Canada by Camlogix Instruments. Camlogix Instruments is a division of Canadian Camera Service. Camlogix is the Internet domain name and registered trade mark owned by the same company. One year parts and labour warranty is provided by the manufacturer from the date of purchase. Please enquire by E-mail before deciding to send the unit back. Often a problem can be resolved by telephone or e-mail without any delay or expense. Should the shutter speed tester require repairs during the warranty period, send the malfunctioning unit directly to the manufacturer: Camlogix Instruments Co. #175-1857 West 4th Ave, Vancouver BC V6J 1M4, Canada Phone: 604-731-1632, Fax: 604-731-2615, E-mail: thtomosy@telus.net Please, package the instrument well. Enclose a copy of the bill of sale as well as a check or money order for Cdn$ 5.00 to cover shipping and handling. Important: send it by ordinary mail, not by a private courier, and identify the contents clearly "test instrument, warranty repair". Otherwise there may be delays at the border. Warranty is void if the instrument has been dropped, disassembled, misused, abused, or exposed to the elements. |
Effective range of the SH-T2 is from 2 seconds to 1/2000 second. If the count runs out of range, (over 1999.9) the most significant digit (1) turns into a reversed L ( -' ). (If the count is allowed to continue, the half digit cycles through the numbers, showing the b, c, and g segments only. See explanation.) |
Scatter Modern Scale Alternate scales |
Range "Kink" in the scale Tolerances |
Light source Sensor bias Basic set-ups Reset |
Instruction Manual |
Instruction Manual |
Table of contents |
Light source Sensor bias Basic set-ups Reset |
Range "Kink" in the scale Tolerances |
Light Source |
In order to use the instrument you need a light source. The steadier the light output, the better. The 60Hz fluctuation of any AC-powered light is detrimental to accurate readings. While a DC powered light were the best, incandescent 110VAC powered bulb is suitable. The light must be diffused. A large diffuser bulb is available from GE called "snowball". This is a regular stock item in most hardware or lighting stores. "Snowballs" come in the usual wattage's and in 4 or 5 inch sizes. (If for some reason you can't obtain "snowballs", a regular bulb inside a diffuser globe can be used.) Remove the shade from an adjustable desk lamp and install the "snowball." (See the photos below.) Natural light (sunlight) is also good. However, direct sunlight is too bright and acts as a point source which is unsuitable. Reflected sunlight from a mat white surface is perfect for our purpose. Or on overcast days, you may point the camera directly toward the sky. Unsuitable light sources are fluorescent lights, glow bulbs, sodium or mercury lights, etc. Any light that closely follows the 60Hz alternating current is unsuitable. A thyristor dimmer or diode energy saver has the same effect, they enhance the 60Hz flicker of the light and are unsuitable for use with the shutter speed tester. However, a resistive dimmer can be used if desired. The color of the light is of no importance since the bias adjustment compensates for light input variations. Thus a low wattage bulb (redder) or high wattage bulb (whiter) can be used when called for. Use at least a 40W "snowball" for testing cameras with lens installed and a 25W "snowball" without lens. |
Sensor Bias |
Basic Setup |
Our proprietary adjustable sensor bias enables the tester to test any type of camera or shutter with or without lens. The bias adjustment compensates for variations in light input. Careful adjustment is especially important when shutter speeds faster than 1/250 second are tested. To calibrate the sensor bias, place the sensor board and the light source in the testing position (see below), open the shutter on B or T, slowly rotate the "Bias" knob until the correct bias indicator - a green LED - lights up. If the light is too bright, and is outside the range of the bias pot, stop down the aperture or move the light farther away from the camera. If too dim, open up the aperture, remove the lens from an SLR or move the camera closer to the light. If you can't get the green LED to light up by any of these methods, change the intensity of the light source. For testing shutters without lens a 25W "snowball" is recommended, and for testing shutters with lens attached, a 40W or 60W "snowball" should be used, depending on the speed of the lens. At shutter speeds slower than 1/60 second, if correctly calibrated, the green LED always lights up during exposure allowing you to keep an eye on the bias calibration. |
Scatter Modern Scale Alternate scales |
Horizontal arrangement: Set the camera down on its bottom with its back toward you, place the "snowball" bulb in front of it, in line with the lens or lens opening. Open the door and press the sensor board onto the film rails. Hold the sensor board in position with your thumb. If you find this difficult, use two narrow strips of double sided adhesive tape to stick the sensor board to the edge of the film gate (photo above). The sensor window is at the center of the sensor board, If you want to measure shutter speeds of a focal plane shutter at a position other than the center, move the board such that the center of the board falls at the position you're interested in. Since the sensor board is 65mm long and 35mm wide, it will fit a medium format film gate as well as a 35mm gate (photo below). You can place a book under the camera to level it or to bring it in line with the light source. If a camera has an uneven bottom, you may place a rice bag or a sugar bag under it to keep it from tipping over (photo above). |
Reset The SH-T2 is provided with auto reset. The auto reset circuit is activated before the counting begins, thus the count is not effected by the reset action. To reset the read-out manually to a visible set of zeros, turn the power switch off, wait two seconds, then turn the power back on again. |
Range |
Effective range of the SH-T2 is from 2 seconds to 1/2000 second. If the count runs out of range, (over 1999.9) the most significant digit (1) turns into a reversed L ( -' ). (If the count is allowed to continue, the half digit cycles through the numbers, showing the b, c, and g segments only. See explanation.) |
Vertical arrangement: Some systems, such as a view camera shutter is easier to operate in the vertical position: Set the sensor board flat on the table with the sensor window facing up, place the shutter over it and let the light shine down into the shutter (photo above). When testing view camera shutters without lens, place the sensor window half way between the center and the periphery of the shutter opening. |
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Warranty Information The SH-T2 is made in Canada by Camlogix Instruments. Camlogix Instruments is a division of Canadian Camera Service. Camlogix is the Internet domain name and registered trade mark owned by the same company. One year parts and labour warranty is provided by the manufacturer from the date of purchase. Please enquire by E-mail before deciding to send the unit back. Often a problem can be resolved by telephone or e-mail without any delay or expense. Should the shutter speed tester require repairs during the warranty period, send the malfunctioning unit directly to the manufacturer: Camlogix Instruments Co. #175-1857 West 4th Ave, Vancouver BC V6J 1M4, Canada Phone: 604-731-1632, Fax: 604-731-2615, E-mail: thtomosy@telus.net Please, package the instrument well. Enclose a copy of the bill of sale as well as a check or money order for Cdn$ 5.00 to cover shipping and handling. Important: send it by ordinary mail, not by a private courier, and identify the contents clearly "test instrument, warranty repair". Otherwise there may be delays at the border. Warranty is void if the instrument has been dropped, disassembled, misused, abused, or exposed to the elements. |
Free Counter Clip: Some of the modern SLRs don't time with their door open, due to the fact that on such models the counter must be on #1 or over. Many Nikon models and others have this feature. This problem can be remedied by setting the frame counter to #1. To do so, find the counter set lever. (It is in the door channel close to where the counter dial is located.) Press the counter set lever in with a screwdriver to emulate the door-closed position. Wind and release the camera three times until the counter reaches #1. The shutter will now produce the correct shutter speeds. To make setting the counter easier, a jig that fits into the door channel and keeps the counter-set lever pressed is now available from Camlogix free of charge. Users of previous models of Delta or Camlogix shutter speed testers can have a Counter Clip absolutely free just by asking for it. This simple little gadget may be used during general repair or testing of cameras, and thus it is a handy item to have in your tool box quite aside from testing shutter speeds. |
