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**c.a.m** · 03-07-2022, 05:04 PM - **1 Like**

Originally posted by snappyhoffy

it talks about using Live View to make the focus.... should we be using OVF focusing to calinrate now they have made this improvement?

The instructions are a bit confusing. I think the key is indicated in Step 3: "Bring the subject into focus using the camera’s phase-detection AF system." Phase Detection AF = AF when using the viewfinder. Basically, the Live View screen is used to check the sharpness of the Viewfinder AF.

- Craig

**Kobie** · 03-07-2022, 07:25 PM

Originally posted by snappyhoffy

Very helpful, thanks.

---------- Post added 03-07-22 at 04:44 PM ----------

Actually reading this again it talks about using Live View to make the focus.... should we be using OVF focusing to calinrate now they have made this improvement?[COLOR="Silver"]

What c.a.m said^^^^^
Basically, you start with Live view to get your proper in focus shot since the focus in live view is done directly from the image sensor and is "always" correct. Then switch to OVF (Phase) and refocus to see if the image is just as sharp/correct as it was in Live view. If both images are the same, then you're good. If the OVF shot has a different in focus region than the Live View shot, then you'll need to adjust the focus using the fine focus adjustment.

**snappyhoffy** · 03-08-2022, 02:01 AM - **2 Likes**

Originally posted by Kobie

What c.a.m said^^^^^
Basically, you start with Live view to get your proper in focus shot since the focus in live view is done directly from the image sensor and is "always" correct. Then switch to OVF (Phase) and refocus to see if the image is just as sharp/correct as it was in Live view. If both images are the same, then you're good. If the OVF shot has a different in focus region than the Live View shot, then you'll need to adjust the focus using the fine focus adjustment.

Thank you Kobie!

sebberry · 03-08-2022, 09:05 AM

Originally posted by Kobie

What c.a.m said^^^^^
Basically, you start with Live view to get your proper in focus shot since the focus in live view is done directly from the image sensor and is "always" correct.

I will politely disagree with you here

I agree that the image sensor should produce accurate focus, but it consistently and reliably misses with my 50-135. Not moving anything, focus is tack sharp (center point at least...) with OVF.

**Kobie** · 03-08-2022, 11:08 AM

Originally posted by sebberry

I will politely disagree with you here

I agree that the image sensor should produce accurate focus, but it consistently and reliably misses with my 50-135. Not moving anything, focus is tack sharp (center point at least...) with OVF.

That's why I said Live View is "Always".notice the quotation marks?

sebberry · 03-08-2022, 11:19 AM

Originally posted by Kobie

That's why I said Live View is "Always".notice the quotation marks?

The theory is totally sound. I'm not sure what would cause LV to miss focus, or why only on certain lenses

**tabz** · 03-09-2022, 05:46 AM

I hoped that new firmware solves my AF issue with D FA100 macro but it is unchanged. AF is still practically unusable with my 100 macro.

**ThorSanchez** · 03-09-2022, 06:09 AM

One additional uncontrolled, subjective datapoint. I upgraded my Mark III to v1.41 prior to going to my kids' soccer tournament this past weekend. I didn't do any lens correction adjustments. Shot only with the 55-300PLM. I didn't really think about the new firmware, and didn't notice any difference in autofocus performance from previous versions.

**rogerstg** · 03-09-2022, 11:49 AM

Originally posted by tabz

I hoped that new firmware solves my AF issue with D FA100 macro but it is unchanged. AF is still practically unusable with my 100 macro.

Sorry to read that. I suspect that either the camera or lens needs to be repaired or adjusted by a technician. My K3iii works well with my D FA 100 Macro, both before and after upgrade.

**tabz** · 03-09-2022, 01:03 PM

Originally posted by rogerstg

Sorry to read that. I suspect that either the camera or lens needs to be repaired or adjusted by a technician. My K3iii works well with my D FA 100 Macro, both before and after upgrade.

My previous bodies (K200D, K-5 and K-3) worked flawlessly with the old D FA100. I have just tested on K200D and works fine with it. My other lens that has similar but not so serious issue with K-3 III is F135.
F28 F50/1.4 F50/1.7 FA20 FA77 FA43 and FA31 are flawless.

Valeriu · 03-09-2022, 02:16 PM

For wildlife we must move to Olympus OM-1, this is the best solution.

**rogerstg** · 03-09-2022, 02:46 PM - **1 Like**

Originally posted by tabz

My previous bodies (K200D, K-5 and K-3) worked flawlessly with the old D FA100. I have just tested on K200D and works fine with it. My other lens that has similar but not so serious issue with K-3 III is F135.
F28 F50/1.4 F50/1.7 FA20 FA77 FA43 and FA31 are flawless.

I'd consider doing a factory reset on the camera, and if that doesn't work, send it in for service.

**Mutters** · 03-09-2022, 07:22 PM

Originally posted by tabz

I hoped that new firmware solves my AF issue with D FA100 macro but it is unchanged. AF is still practically unusable with my 100 macro.

Same here with 1.41.
I won't be doing anything about it, though.
The logistics and heartache just aren't worth the bother for one lens - that possibly won't behave any differently when it comes back.
All my other lenses are fine.

**Larrymc** · 03-09-2022, 08:05 PM - **3 Likes**

Originally posted by Valeriu

For wildlife we must move to Olympus OM-1, this is the best solution.

Maybe you should move on to an Olympus Forum with with your opinions since we are discussing Pentax cameras and specifically the Pentax K-3 Mk III............Just a suggestion.

Valeriu · 03-09-2022, 09:05 PM

Originally posted by Larrymc

Maybe you should move on to an Olympus Forum with with your opinions since we are discussing Pentax cameras and specifically the Pentax K-3 Mk III............Just a suggestion.

I have a Pentax K3III too.
When I see so many problems due to its decalibration, I realize that mirrorless is the perfect solution, and OM-1 is fantastic for wildlife, as I have seen in so many reviews and opinions.

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03-07-2022, 05:04 PM - 1 Like	#31
c.a.m Site Supporter Join Date: Jan 2013 Location: Ottawa, Canada Photos: Gallery \| Albums Posts: 4,194	Originally posted by snappyhoffy it talks about using Live View to make the focus.... should we be using OVF focusing to calinrate now they have made this improvement? The instructions are a bit confusing. I think the key is indicated in Step 3: "Bring the subject into focus using the camera’s phase-detection AF system." Phase Detection AF = AF when using the viewfinder. Basically, the Live View screen is used to check the sharpness of the Viewfinder AF. - Craig

03-07-2022, 07:25 PM	#32
Kobie Site Supporter Join Date: Oct 2014 Location: Bowmanville Photos: Albums Posts: 1,211	Originally posted by snappyhoffy Very helpful, thanks. ---------- Post added 03-07-22 at 04:44 PM ---------- Actually reading this again it talks about using Live View to make the focus.... should we be using OVF focusing to calinrate now they have made this improvement?[COLOR="Silver"] What c.a.m said^^^^^ Basically, you start with Live view to get your proper in focus shot since the focus in live view is done directly from the image sensor and is "always" correct. Then switch to OVF (Phase) and refocus to see if the image is just as sharp/correct as it was in Live view. If both images are the same, then you're good. If the OVF shot has a different in focus region than the Live View shot, then you'll need to adjust the focus using the fine focus adjustment.

03-08-2022, 02:01 AM - 2 Likes	#33
snappyhoffy Site Supporter Join Date: Dec 2018 Location: Buckinghamshire, UK Posts: 185	Originally posted by Kobie What c.a.m said^^^^^ Basically, you start with Live view to get your proper in focus shot since the focus in live view is done directly from the image sensor and is "always" correct. Then switch to OVF (Phase) and refocus to see if the image is just as sharp/correct as it was in Live view. If both images are the same, then you're good. If the OVF shot has a different in focus region than the Live View shot, then you'll need to adjust the focus using the fine focus adjustment. Thank you Kobie!

03-08-2022, 09:05 AM	#34
sebberry Pentaxian Join Date: Jan 2009 Location: Frozen white North Photos: Albums Posts: 1,135	Originally posted by Kobie What c.a.m said^^^^^ Basically, you start with Live view to get your proper in focus shot since the focus in live view is done directly from the image sensor and is "always" correct. I will politely disagree with you here I agree that the image sensor should produce accurate focus, but it consistently and reliably misses with my 50-135. Not moving anything, focus is tack sharp (center point at least...) with OVF.

03-08-2022, 11:08 AM	#35
Kobie Site Supporter Join Date: Oct 2014 Location: Bowmanville Photos: Albums Posts: 1,211	Originally posted by sebberry I will politely disagree with you here I agree that the image sensor should produce accurate focus, but it consistently and reliably misses with my 50-135. Not moving anything, focus is tack sharp (center point at least...) with OVF. That's why I said Live View is "Always".notice the quotation marks?

03-08-2022, 11:19 AM	#36
sebberry Pentaxian Join Date: Jan 2009 Location: Frozen white North Photos: Albums Posts: 1,135	Originally posted by Kobie That's why I said Live View is "Always".notice the quotation marks? The theory is totally sound. I'm not sure what would cause LV to miss focus, or why only on certain lenses

03-09-2022, 05:46 AM	#37
tabz Site Supporter Join Date: Sep 2009 Photos: Albums Posts: 42	I hoped that new firmware solves my AF issue with D FA100 macro but it is unchanged. AF is still practically unusable with my 100 macro.

03-09-2022, 06:09 AM	#38
ThorSanchez Site Supporter Join Date: Dec 2012 Photos: Gallery \| Albums Posts: 2,809	One additional uncontrolled, subjective datapoint. I upgraded my Mark III to v1.41 prior to going to my kids' soccer tournament this past weekend. I didn't do any lens correction adjustments. Shot only with the 55-300PLM. I didn't really think about the new firmware, and didn't notice any difference in autofocus performance from previous versions.

03-09-2022, 11:49 AM	#39
rogerstg Loyal Site Supporter Join Date: Oct 2007 Location: Rhode Island Photos: Albums Posts: 1,168	Originally posted by tabz I hoped that new firmware solves my AF issue with D FA100 macro but it is unchanged. AF is still practically unusable with my 100 macro. Sorry to read that. I suspect that either the camera or lens needs to be repaired or adjusted by a technician. My K3iii works well with my D FA 100 Macro, both before and after upgrade.

03-09-2022, 01:03 PM	#40
tabz Site Supporter Join Date: Sep 2009 Photos: Albums Posts: 42	Originally posted by rogerstg Sorry to read that. I suspect that either the camera or lens needs to be repaired or adjusted by a technician. My K3iii works well with my D FA 100 Macro, both before and after upgrade. My previous bodies (K200D, K-5 and K-3) worked flawlessly with the old D FA100. I have just tested on K200D and works fine with it. My other lens that has similar but not so serious issue with K-3 III is F135. F28 F50/1.4 F50/1.7 FA20 FA77 FA43 and FA31 are flawless.

03-09-2022, 02:16 PM	#41
Valeriu Forum Member Join Date: Mar 2013 Posts: 67	For wildlife we must move to Olympus OM-1, this is the best solution.

03-09-2022, 02:46 PM - 1 Like	#42
rogerstg Loyal Site Supporter Join Date: Oct 2007 Location: Rhode Island Photos: Albums Posts: 1,168	Originally posted by tabz My previous bodies (K200D, K-5 and K-3) worked flawlessly with the old D FA100. I have just tested on K200D and works fine with it. My other lens that has similar but not so serious issue with K-3 III is F135. F28 F50/1.4 F50/1.7 FA20 FA77 FA43 and FA31 are flawless. I'd consider doing a factory reset on the camera, and if that doesn't work, send it in for service.

03-09-2022, 07:22 PM	#43
Mutters Loyal Site Supporter Join Date: Aug 2007 Location: Melbourne, Australia Photos: Albums Posts: 263	Originally posted by tabz I hoped that new firmware solves my AF issue with D FA100 macro but it is unchanged. AF is still practically unusable with my 100 macro. Same here with 1.41. I won't be doing anything about it, though. The logistics and heartache just aren't worth the bother for one lens - that possibly won't behave any differently when it comes back. All my other lenses are fine.

03-09-2022, 08:05 PM - 3 Likes	#44
Larrymc Site Supporter Join Date: Jun 2014 Location: Mississippi, USA Posts: 5,252	Originally posted by Valeriu For wildlife we must move to Olympus OM-1, this is the best solution. Maybe you should move on to an Olympus Forum with with your opinions since we are discussing Pentax cameras and specifically the Pentax K-3 Mk III............Just a suggestion.

03-09-2022, 09:05 PM	#45
Valeriu Forum Member Join Date: Mar 2013 Posts: 67	Originally posted by Larrymc Maybe you should move on to an Olympus Forum with with your opinions since we are discussing Pentax cameras and specifically the Pentax K-3 Mk III............Just a suggestion. I have a Pentax K3III too. When I see so many problems due to its decalibration, I realize that mirrorless is the perfect solution, and OM-1 is fantastic for wildlife, as I have seen in so many reviews and opinions.

Anyone tested the improved AF in firmware v1.41?

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