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arnie0674 · 01-28-2012, 08:18 PM

How do I check for perfect focus on the rear lcd? If I zoom in to the max on the K7, every pic looks blurry, even those that look perfect on screen. Does anybody know at what zoom level you are seeing exact pixels 1:1?

Adam · 01-28-2012, 08:31 PM

8x I believe is the 1:1 zoom.

**i_trax** · 01-28-2012, 11:58 PM

my K7 only have 2x,4x,or 6x
I looked through all menues and can not see where I could enable more options?
the same with my KX

kind regards
jack

arnie0674 · 01-29-2012, 08:35 AM

Thanks Adam!

demp10 · 01-29-2012, 09:08 AM

With autofocus lenses I believe you can zoom up to 6x, with manual focus up to 10x. Personally I found anything above 6x is not helping much to improve the perception of focus.

arnie0674 · 01-29-2012, 09:24 AM

demp, I_trax, I'm not sure what you mean. I was talking about checking focus after taking the picture.

It sounds like you are talking about live view - you can zoom in in live view? how do i do that?

demp10 · 01-29-2012, 02:32 PM

Originally posted by arnie0674

demp, I_trax, I'm not sure what you mean. I was talking about checking focus after taking the picture.

It sounds like you are talking about live view - you can zoom in in live view? how do i do that?

Yes I was talking about Live View. You zoom in by pressing the Info button. You press the OK button to reset zoom to full view.

To check focus after taking the picture can be tricky if you do not record a JPG image. If you shoot RAW only, the camera will do a quick RAW to JPG conversion to display the image on the LCD screen. The conversion is done with preset parameters and it is far from what you can get by manipulating a good RAW converter in your computer.

I found that even photos that look razor-sharp in Lightroom after processing, look relatively fuzzy on the LCD when magnified. If focus is critical, your best chances are to use Live View and auto focus using contrast AF.

arnie0674 · 01-29-2012, 05:36 PM

Thanks demp, i never knew that! Theres a lot about my k7 i dont know, thats what happens when you dont read the manual. I recently just updated the firmware from 1.0 to 1.3, so now a bunch of things changed.

One thing i did notice, contrast AF in live view (in low light) is very very slow.

demp10 · 01-29-2012, 07:09 PM

Originally posted by arnie0674

One thing i did notice, contrast AF in live view (in low light) is very very slow.

Unfortunately this is true. Contrast AF, although very accurate, tends to be very slow even in good lighting and it consumes quite a bit of battery power. But if you really need to nail the focus, it is the best option. There are no front/back focus issues either, since you are using the actual sensor to focus.

**i_trax** · 01-29-2012, 10:47 PM

thank you demp, and Q has only 2x or 4x

01-28-2012, 08:18 PM	#1
arnie0674 Senior Member Join Date: Jan 2012 Photos: Albums Posts: 173	Checking Focus on Rear LCD How do I check for perfect focus on the rear lcd? If I zoom in to the max on the K7, every pic looks blurry, even those that look perfect on screen. Does anybody know at what zoom level you are seeing exact pixels 1:1?

01-28-2012, 08:31 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,609	8x I believe is the 1:1 zoom. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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01-28-2012, 11:58 PM	#3
i_trax Loyal Site Supporter Join Date: Jan 2011 Location: Perth Western Australia Photos: Gallery \| Albums Posts: 2,621	my K7 only have 2x,4x,or 6x I looked through all menues and can not see where I could enable more options? the same with my KX kind regards jack

01-29-2012, 08:35 AM	#4
arnie0674 Senior Member Join Date: Jan 2012 Photos: Albums Posts: 173 Original Poster	Thanks Adam!

01-29-2012, 09:08 AM	#5
demp10 Veteran Member Join Date: Jun 2011 Location: Atlanta Photos: Albums Posts: 602	With autofocus lenses I believe you can zoom up to 6x, with manual focus up to 10x. Personally I found anything above 6x is not helping much to improve the perception of focus.

01-29-2012, 09:24 AM	#6
arnie0674 Senior Member Join Date: Jan 2012 Photos: Albums Posts: 173 Original Poster	demp, I_trax, I'm not sure what you mean. I was talking about checking focus after taking the picture. It sounds like you are talking about live view - you can zoom in in live view? how do i do that?

01-29-2012, 02:32 PM	#7
demp10 Veteran Member Join Date: Jun 2011 Location: Atlanta Photos: Albums Posts: 602	Originally posted by arnie0674 demp, I_trax, I'm not sure what you mean. I was talking about checking focus after taking the picture. It sounds like you are talking about live view - you can zoom in in live view? how do i do that? Yes I was talking about Live View. You zoom in by pressing the Info button. You press the OK button to reset zoom to full view. To check focus after taking the picture can be tricky if you do not record a JPG image. If you shoot RAW only, the camera will do a quick RAW to JPG conversion to display the image on the LCD screen. The conversion is done with preset parameters and it is far from what you can get by manipulating a good RAW converter in your computer. I found that even photos that look razor-sharp in Lightroom after processing, look relatively fuzzy on the LCD when magnified. If focus is critical, your best chances are to use Live View and auto focus using contrast AF.

01-29-2012, 05:36 PM	#8
arnie0674 Senior Member Join Date: Jan 2012 Photos: Albums Posts: 173 Original Poster	Thanks demp, i never knew that! Theres a lot about my k7 i dont know, thats what happens when you dont read the manual. I recently just updated the firmware from 1.0 to 1.3, so now a bunch of things changed. One thing i did notice, contrast AF in live view (in low light) is very very slow.

01-29-2012, 07:09 PM	#9
demp10 Veteran Member Join Date: Jun 2011 Location: Atlanta Photos: Albums Posts: 602	Originally posted by arnie0674 One thing i did notice, contrast AF in live view (in low light) is very very slow. Unfortunately this is true. Contrast AF, although very accurate, tends to be very slow even in good lighting and it consumes quite a bit of battery power. But if you really need to nail the focus, it is the best option. There are no front/back focus issues either, since you are using the actual sensor to focus.

01-29-2012, 10:47 PM	#10
i_trax Loyal Site Supporter Join Date: Jan 2011 Location: Perth Western Australia Photos: Gallery \| Albums Posts: 2,621	thank you demp, and Q has only 2x or 4x

Checking Focus on Rear LCD

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