Todays deals on Reflex Sensor?

Wenglor Reflex Sensor YP06MGVL80 new $889.99

TELEMECANIQUE XGSD6304316 INDUCTEL SENSOR REFLEX+OPEN $589.99

New Wenglor Reflex Sensor CP24MHT80 $585.00

SICK PROXIMITY/REFLEX SENSOR WTB190TL-P430 (BRAND NEW) $485.95

NEW WENGLOR YN33PA3 REFLEX SENSOR LASER BACKGROUND SUPP $299.99

Wenglor, Reflex Sensor, HO08PA3, NEW (Qty. 6) $288.00

Cutler-Hammer 1411D6501 Photoelectric Reflex Sensor NIB $254.99

Wenglor HN55PA3 Reflective/Reflex Photoelectric Sensor/Switch, New in Box $234.00

WENGLOR # HW11PA3 REFLEX SENSOR W/ BACKGROUND SUPPRESSION, “NIB” $219.95

NEW WENGLOR YN44PA3 REFLEX SENSOR NIB $199.99

Wenglor Universal reflex Sensor UF87PCV3 used $199.99

Wenglor Reflex Sensor CP35MHT80 – For Measuring Tasks $190.00

SICK PHOTOELECTRIC REFLEX SENSOR WL1000-P430 PT#7023830 $145.79

6682 NEW Wenglor HN55PA3 Reflex Sensor 10-30Vdc 200mA $155.93

Wenglor Reflex Sensor UM55PA $145.60

Wenglor Reflex Sensor YT25MGV80 used $149.99

Sick Photoelectric Reflex Sensor WL18-3P430 1025911 new $139.99

10) E65SMPRS9350 Polarized Reflex Photoelectric Sensors $127.50

Eaton Cutler-Hammer 1450B-6511 Photoelectric Reflex Sensor $115.00

NEW WENGLOR HN55PA3 REFLEX SENSOR NIB $110.00

SICK PHOTOELECTRIC REFLEX SWITCH/SENSOR WL12G-P530 NEW $97.19

Wenglor XN96VBH3 Retro Reflex LASER Sensor, Photoelectric Sensor $114.00

Sick Optic Proximity Reflex Infrared Photo Sensor WT24-B4101 1011461 $94.99

SICK PHOTOELECTRIC REFLEX SENSOR WL170-P430 (NEW) $82.61

Cutler-Hammer E64CAT5T Pol Reflex Sensor $99.99

WENGLOR REFLEX SENSOR OPT89Z01 OPT 89Z01 $99.99

Sick Sensor WL23-2P2432S02 Photoelectric Switch Sensor 15m 10-30VDC Optic Reflex $99.95

‘NEW’ Wenglor Reflex Sensor HB03PBT7K $99.00

USED Wenglor HN55PA3 Reflex Sensor with Background Suppression $90.00

Opcon 1411DS3119 Reflex Photoelectric Sensor NIB $80.00

NEW SICK PHOTO OPTICAL REFLEX SENSOR SWITCH, WL12-N1221 $84.00

SICK PHOTOELECTRIC REFLEX SENSOR WL160-F132 PT#6022767 $68.03

Photoelectric Sensor Head,Eaton/Cutler Hammer E51DP3,extended range,retro-reflex $79.00

SICK WL12G-P530 REFLEX SENSOR $70.00

Wenglor Reflex Sensor, New!, 30 mm Range $70.00

CUTLER-HAMMER 14102R6517 Comet Photoelectric Reflex Sensor $75.00

Sick WL27-2F430 PHOTOELECTRIC SENSOR REFLEX POLAR $73.48

SICK PHOTOELECTRIC REFLEX SENSOR WE12-2P430 (NEW) $53.45

NEW SIEMENS Photoelectric Reflex Sensor 3RG7011-0GB00 $65.99

Wenglor Reflex Sensor HK12PCT7 $49.99

SICK WLG4-3F3434 (1043683) Photoelectric Reflex Sensor – Demo Unit – Gently Used $45.00

CUTLER-HAMMER 14102R6517 Comet Photoelectric Reflex Sensor $49.99

CAPP 336061 PHOTOELECTRIC REFLEX SENSOR 6′ CABLE NEW $45.00

Wenglor Photoelectric Retro-Reflex Sensor YT33PA3 $49.00

Cutler Hammer Photoelectric Reflex Sensor 14151AD14 NEW $50.00

USED SICK PHOTOELECTRIC REFLEX SENSOR SWITCH WL12-N1221 $45.00

SICK Reflex Sensor Model WL24 B4301; Part 1011463 $45.00

SICK Reflex Sensor Model WL24 B4301 Part 1011463 $45.00

SICK Reflex Sensor Model WL24 2B430 Part 1 017 860 $45.00

EATON CUTLER HAMMER PHOTOELECTRIC REFLEX SENSOR 1450B-6511 1450B6511 SER B2 $24.50

EATON Photoelectric Reflex Sensor PC5 Module Card*Cab3 $16.50

Sick Optex WTB140-N430 Proximity Reflex Sensor Switch $25.00

Infrared reflex close to switch sensor module TCRT5000 $9.99

Infrared reflex close to switch sensor module TCRT5000 $9.99

Infrared reflex close to switch sensor module TCRT5000 $9.99

DETECTOR – 8 cm OPTICAL REFLEX SENSOR $4.00

WENGLOR KN88PA3 RETRO-REFLEX SENSOR FOR CLEAR GLASS REC $149.00

New Cutler Hammer Reflex Photo Electric Sensor E51CLP11 $245.00

New CUTLER HAMMER REFLEX SENSOR 1410B-6501 95-130 V 5VA $210.00

OPCON 1480B REFLEX SENSOR $175.00

New Opcon 1410B-6501 Reflex Photo Sensor $150.00

Cutler Hammer 1455AD6513 Reflex Sensor 1455AD-6513 Series 55 *NEW* $145.00

OPCON 1410B-6501 REFLEX SENSOR $130.00

Cutler Hammer Reflex Photo Electric Sensor E51CLP1 $125.00

Sick Optic WL12-2B560 Photoelectric Reflex Sensor Polarized Class 2 ! WOW ! $119.99

WENGLOR XN96PB3 INDUSTRIAL REFLEX SENSOR $112.50

SICK WSE27-3P2450 Proximity / Reflex Sensors $109.65

Cutler Hammer Reflex Sensor Module 148B-6501 (NIB) $100.00

Cutler Hammer Reflex Sensor Module 1480R-6501 (NIB) $100.00

CUTLER HAMMER 1450B-6511 PHOTOELECTRIC REFLEX SENSOR 90-132 VAC $99.99

Cutler Hammer Reflex sensor Comet Series 14102A6517 DC forward W/Cable NIB NEW $99.99

NIB NEW OPCON 1412A-6501 REFLEX SENSOR CONTROL (64) $95.00

SICK WL12-2P430 Photoelectric Reflex Sensor ! WOW ! $89.99

SICK Reflex Sensor ,WLL12-B5281, USED $75.00

OPCON 1480B REFLEX SENSOR $75.00

TELCO SMRR 8400 PG 5 M Retro Reflex Sensor SMRR8400PG5M $74.88

Cutler Hammer Pol Reflex Sensor SRS A2 98084 $68.00

Sick – WS27-3D2450 Proximity / Reflex Sensors $62.65

NIB NEW OPCON 1480A-6501 REFLEX SENSOR CONTROL HEAD (64) $53.00

New Wenglor Photoelectric Reflex Sensor HK12PCT7 $45.00

SICK Reflex Sensor; Model # WL24 B4301; Part # 1011463 $45.00

SICK Reflex Sensor; Model WL24 B4301; Part 1011463 $45.00

Siemens PNP Reflex Sensor 3RG7011-7AA00 New & Sealed $40.86

WENGLOR UNIVERSAL REFLEX SENSOR PART #UC44PC3S421 NIB $34.99

SICK WT27-2F430 PROXIMITY / REFLEX SENSOR $32.07

WENGLOR REFLEX SENSOR OPT 123 WITH CABLE $29.00

SICK Proximity / Reflex Sensors WLL160-F420?. $23.00

VISOLUX PHOTO REFLEX SENSOR 6-1368/8/25 $15.95

WENGLOR REFLEX SENSORS WITH BACKGROUND SUPPRESSION $9.00

Reflex Sensor Questions

Digital Camera Preview – Hands On With The Sony A55

 

My first impression is that Sony has created a very small form digital single lens camera. First glance had me thinking that the camera would be cramped to hold and that my fingers might accidently activate buttons. Both of these concerns proved to be misplaced, the body fit well into my hands and the balance was excellent. Overall the A55 with the kit 18-55 lens mounted seemed very substantial and quite solid.

 

Before I dive into the unique features of this digital camera I want to comment on a few of Sony’s nicer touches. The swiveling rear LCD combination viewfinder / monitor is really very sharp and offers a decent view even in moderate sunlight. The electronic eyelevel viewfinder may not be quite the same as the view through a direct view prism, but it was more than sufficient. I liked the eyelevel finder’s artificial horizon display which helped me keep the camera level while handheld.

 

Powering up the camera was almost instantaneous. The rear LCD displayed relevant settings information as a border all the way around the live image view. The live image switches from the rear LCD to the eyelevel finder when the camera’s sensors detect that you have raised the camera to your eye.

 

Operationally the A55 is much like any other single lens digital camera. Buttons and switches are marked with familiar icons and labels; the ubiquitous four-way controller is under the right thumb just as on any other camera, the command and mode dials are just where I would expect to find them. In short, when the camera is up to the eye a photographer familiar with a Nikon or Canon camera won’t fumble very much when seeking out the controls.

 

And now let’s review how the Sony A55 is very different. So far I have been referring to the A55 as a Digital Single Lens (DSL) camera, leaving off the “reflex” (R) part of the description applied to other more traditional models.

 

In a traditional camera there is a mirror that hangs down in the image path between the rear of the lens and the camera’s shutter and image sensor. This mirror reflects the incoming image up into the eyelevel viewfinder and onto focus and exposure sensors. Each time the shutter button is tripped this mirror must pop up out of the way so that the image can pass though to the image sensor. After the shutter opens and closes the mirror resets into the image path and the eyelevel finder view is restored. This reflexive up and down action gives us the “R” in DSLR.

 

Sony’s A55 does indeed have a mirror sitting in the image path between the lens and sensor. However this mirror doesn’t move up and down to get out of the way when the shutter is tripped. The mirror of the A55 is a half mirror so images both reflect up from it and pass through it as well. Think of mirrored sunglasses or a two-way mirror as an example. But why did Sony think this was a better idea than a moving reflex mirror?

 

Reflex mirrors have a blackout moment each time the shutter button is tripped. For a split second not only is the photographer blind but so are the focus and exposure sensors. For still photography captured at a brisk five or six frames per second this isn’t a huge issue. However if the manufacturer wants to offer a camera with up to 10 frames per second the blackout period would almost exceed the viewing period so focus and exposure are less certain. Plus there is an enormous amount of damping required to prevent internal vibrations that would lead to blurred images – part of what makes traditional cameras capable of 10 FPS so expensive.

 

The biggest plus of a non-reflex mirror design is found in the video mode. A traditional camera design requires that the mirror be up and out of the way for video capture. With the mirror up the focus and exposure sensors are blind and the camera must be manually focused or rely on not so good contrast-based autofocus. Since the Sony A55 mirror is always down and in play the focus and exposure sensors are always operational. This means that the Sony A55 can capture 1080p HD movies with fully automatic focus and exposure, something that no other DSL can do as well.

 

In operation I found that the A55 in movie mode does out perform most other DSLR’s that I’ve used. The video isn’t better quality (we’ll see that in a moment) but the experience of capturing it was by far effortless.

 

I did have several concerns with the Sony A55. Many of my issues likely come from the short time I had with the camera and would likely go away with better familiarity:

 

The A55 offers in-camera HDR still image capture. The camera will take several fast exposures at a wide range of settings and then combine them into one with greater tonal range. The results were good about 40% of the time. I found that most often the camera’s HDR results were too cartoon-like in color with blooming reds and warm colors. Niggling detail – once set to HDR the photographer has to manually turn it off even after power down and restart. Forgetting to do this will result in the camera taking an HDR image the next time it is turned on.

 

Video colors seemed to be strong too. It my be that I just like more realistic contrast and color, but the A55 seems to add some “pop” to warm colors in video just as it did in HDR. I didn’t care for it but my wife actually liked it so it is a matter of personal taste.

 

For an advanced shooter Sony’s heavy reliance on pictorial descriptions of shooting modes within the menu system only slow things down. I believe that even someone new to using exposure modes will soon tire of the two-beat delay before the pictorial screen moves on to the actual menu screen.

 

I have some pretty good video editing software from Nero and Adobe. However the Sony video output couldn’t be opened with either brand. The AVCHD video format captured by the A55 seems to require a first pass through the included Sony software before my video suites could manage the movies.

 

Conclusion: The Sony A55 is right on target for two types of photographer. First is the photographer moving up from a compact digital camera that will appreciate the simple menu system with pictorial assistance. The second group is the family photographer who wants a highly reliable still camera with far easier than average video capture. The photographer who only needs video on few occasions and for short duration will likely be drawn to a Nikon or Canon models for their larger system of accessories and lower entry cost.

About the Author

Stu Eddins is blogger, instructor, merchandiser, and is generally in charge of a lot of things for Porter’s Digital Cameras and Imaging. Visit their site at www.porters.com. Years of experience over the counter and in classrooms have turned Stu into an evangelist for image preservation, capturing and sharing memories, and helping people understand digital camera lenses , digital cameras.

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