Firmware upgrade changes AF fine adjustments and different testing method.

stevebrot · 01-03-2022, 03:41 PM

A little late to the party here, but may I ask by what means you determined that the fine adjustment had changed for a particular lens and whether the original value was correct before the firmware update.

Steve

**BarryE** · 01-03-2022, 11:13 PM

Originally posted by stevebrot

A little late to the party here, but may I ask by what means you determined that the fine adjustment had changed for a particular lens and whether the original value was correct before the firmware update.

Steve

Steve, I'd recorded in a database the data from previous adjustments that I'd entered in the camera. I then updated the firmware. I then proceeded to swap each of my lenses and note the (sometimes) different data that the camera now stored. I then proceeded to retest each lens.

Whether my original tests had given me the correct value, I can only say that they were close, but not perfect. My new tests did not change the values much from my original values.

Not a Number · 01-04-2022, 05:28 AM

I seem to recall some others posting having to redo AF adjustments after firmware update - not necessarily on the K-1. Not everybody though.

It may depend on how big an increment between versions your update from. Or as UncleVanya hypothesizes it may depend on the lens.

**BarryE** · 01-04-2022, 07:05 AM

Originally posted by Not a Number

I seem to recall some others posting having to redo AF adjustments after firmware update - not necessarily on the K-1. Not everybody though.

It may depend on how big an increment between versions your update from. Or as UncleVanya hypothesizes it may depend on the lens.

Interesting if other's have reported needing to redo adjustments. As I updated from v1.4 to v1.55 my gap between updates was reasonably lengthy, so it could be that ...

pschlute · 01-04-2022, 12:41 PM

Had my K-1 for nearly six years now. Never seen the AF/FA values change after many updates to firmware.

stevebrot · 01-04-2022, 07:14 PM

Originally posted by Not a Number

I seem to recall some others posting having to redo AF adjustments after firmware update - not necessarily on the K-1.

Some K-3III users has a loss of AF adjustments with a firmware upgrade, IIRC.

Steve

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01-03-2022, 03:41 PM	#16
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	A little late to the party here, but may I ask by what means you determined that the fine adjustment had changed for a particular lens and whether the original value was correct before the firmware update. Steve

01-03-2022, 11:13 PM	#17
BarryE Site Supporter Join Date: Jan 2013 Location: Hampshire, UK Posts: 1,654 Original Poster	Originally posted by stevebrot A little late to the party here, but may I ask by what means you determined that the fine adjustment had changed for a particular lens and whether the original value was correct before the firmware update. Steve Steve, I'd recorded in a database the data from previous adjustments that I'd entered in the camera. I then updated the firmware. I then proceeded to swap each of my lenses and note the (sometimes) different data that the camera now stored. I then proceeded to retest each lens. Whether my original tests had given me the correct value, I can only say that they were close, but not perfect. My new tests did not change the values much from my original values.

01-04-2022, 05:28 AM	#18
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	I seem to recall some others posting having to redo AF adjustments after firmware update - not necessarily on the K-1. Not everybody though. It may depend on how big an increment between versions your update from. Or as UncleVanya hypothesizes it may depend on the lens.

01-04-2022, 07:05 AM	#19
BarryE Site Supporter Join Date: Jan 2013 Location: Hampshire, UK Posts: 1,654 Original Poster	Originally posted by Not a Number I seem to recall some others posting having to redo AF adjustments after firmware update - not necessarily on the K-1. Not everybody though. It may depend on how big an increment between versions your update from. Or as UncleVanya hypothesizes it may depend on the lens. Interesting if other's have reported needing to redo adjustments. As I updated from v1.4 to v1.55 my gap between updates was reasonably lengthy, so it could be that ...

01-04-2022, 12:41 PM	#20
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,219	Had my K-1 for nearly six years now. Never seen the AF/FA values change after many updates to firmware.

01-04-2022, 07:14 PM	#21
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Not a Number I seem to recall some others posting having to redo AF adjustments after firmware update - not necessarily on the K-1. Some K-3III users has a loss of AF adjustments with a firmware upgrade, IIRC. Steve