MC75 Camera Response Time

I have a potential client who is evaluating MC75 to replace Psion Ikon units. Their 2 concerns are
1. MC75 Camera response time is 4-5 seconds compared to competition 1-2 seconds
2. MC 75 does NOT has page up and page down buttons. ( can any of the qwerty buttons be re-mapped to pge up and page down?).

I need guidance in helping TAM displace competition and get MC75's in the field
Alan Epshteyn
When you say "response time",

When you say "response time", are you referring to the image capture time?  If so, have you tried disabling auto-focus via the menu?
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Sanjay Mishra
Yes, We have trie4d disabling

Yes, We have trie4d disabling auto-focus, no noticable effect.

Also this a a competitive environment where we are trying to displace incumbent.

I have found the kbtools for MC75, This should ghelp address issue 2 above.
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Dave Koch
If you havn't already, take a

If you havn't already, take a look a the the following post "MC75 Camera Competitive Analysis"
https://devcentral.symbol.com/shwmessage.aspx?forumid=251&messageid=11841


There is a bunch of information comparing the camera solutions of the MC75, Ikon and CN3 devices.  The section on Shutter Sound may help explain the difference in response time between the devices, see below.

SHUTTER SOUND (Pictures & Video Application)

By default Microsoft’s Pictures and Videos (pimg.exe) application plays the shutter sound immediately after the trigger is pressed – not waiting for the exposure to finish. Consequently, if a user moves the camera after the shutter sound plays, but before the exposure finishes the captured image may be blurred. The root-cause of this issue is a flaw in Microsoft’s DirectShow architecture.

We developed a workaround for this issue with some creative engineering in our camera driver stack. According to our testing, Intermec’s CN3 has a similar workaround. The Psion Ikon, however, does not appear to address this issue. As a result, if the camera is moved immediately after the shutter sound plays, the captured image may be blurred.

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Sanjay Mishra
"MC75 Camera Competitive

"MC75 Camera Competitive Analysis" link is helpful. I will be discussing points from here with partner for presentation to client.

Thanks for the pointer Dave.
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Gene Niles
you can also try some of the

you can also try some of the demo code at http://compass.mot.com/go/281691118
the directshow sample may show quicker responses than the MS API.
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Anthony Ambler
Alan, Do you have a registry

Alan,

Do you have a registry key or know if it is possible to have the autofocus "disabled" persist through a warm boot? We have another case in tech support where this is needed.

Thanks,
Tony
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Anthony Ambler
I was able to get the

I was able to get the registry key for this from another support team member (thanks Milan):


[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\BarCodeReader2\Settings]


"ReaderParams"=hex:\


      84,00,00,00,64,00,00,00,02,00,00,00,00,00,00,00,F4,01,00,00,03,00,00,00,\


      98,3A,00,00,00,00,00,00,00,00,00,00,00,00,00,00,02,00,00,00,00,00,00,00,\


      00,00,00,00,01,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,28,00,00,00,\


      28,00,00,00,B7,01,00,00,53,01,00,00,02,00,00,00,01,00,00,00,E8,03,00,00,\


      00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\


      00,00,00,00,00,00,00,00,00,00,00,00


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Petr Selinger
We have just tried above

We have just tried above mentioned REG key, but this seems to work only for applications using color camera as scanner. If we use Camera app in Pictures & Videos, the Auto Focus is still enabled. Is there any way how to make the Auto Focus settings persistent? Account team is in need to find a quick way how to achieve it.

Thanks!
Petr
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Petr Selinger
When using following REG key

When using following REG key for disabling auto focus by default (cold boot persistent settings), we can see about 1 sec faster response in taking pictures (1.7 sec with auto focus disabled compared to 2.7 sec with auto focus enabled).

[HKEY_CURRENT_USER\Software\Symbol\pictures\camera\user]

"CSPROPERTY_CAMERACONTROL_FOCUS"=dword:0
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Anonymous (not verified)
Sanjay,  You can remap any

Sanjay,

 You can remap any of the Qwery keys to generate Page Up/Down using the kbtools files which allow the keycode tables to be modified.  If you specify which keys you want to remap I can send you the modified files for installation on the device.

Best Regards,
Ian Hatton
EMb EMEA

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