Pentax lenses with a mirrorless camera

**clackers** · 08-21-2018, 11:02 PM

Originally posted by Tigs

Actually EVF with focus peaking and magnification are a great for obtaining accurate focus with mf lenses. Probably better than any DSLR can do for that effect

Pentax LV supports both focus peaking and magnification, unlike Canon and Nikon.

If you add a Hoodman loupe, you've basically got an EVF.

kypfer · 08-22-2018, 01:17 AM

Originally posted by Tigs

Actually EVF with focus peaking and magnification are a great for obtaining accurate focus with mf lenses. Probably better than any DSLR can do for that effect, as reported by many good reviewers out there. Most mirrorless cameras have these aids and that is partially the reason why vintage MF glass is so popular with them.

You're probably right, if the camera you're using has "Focus Peaking", unfortunately my NX5 doesn't feature that function ... unlike my Pentax DSLR's which do

Once one gets to "a certain age", trying to get close enough to a "Live View" screen to assess the accurate focus gets more and more difficult, even with magnification, therefore one has to rely on an optically corrected viewfinder ... if the viewfinder is of "limited" resolution it simply becomes too grainy to use precisely

**clackers** · 08-22-2018, 02:29 AM

Originally posted by kypfer

Once one gets to "a certain age", trying to get close enough to a "Live View" screen to assess the accurate focus gets more and more difficult, even with magnification, (

A genuine Hoodman on the screen will give you +/- 3 diopters, though, and you can use it in full daylight.

Tigs · 08-22-2018, 02:33 PM

Originally posted by kypfer

You're probably right, if the camera you're using has "Focus Peaking", unfortunately my NX5 doesn't feature that function ... unlike my Pentax DSLR's which do

Once one gets to "a certain age", trying to get close enough to a "Live View" screen to assess the accurate focus gets more and more difficult, even with magnification, therefore one has to rely on an optically corrected viewfinder ... if the viewfinder is of "limited" resolution it simply becomes too grainy to use precisely

I do not think it is fair to use an eight year old consumer grade camera as a reference point for comparison.

- Both EVFs and OVFs usually have diopter correction
- An OVF is not compatible with focus peaking
- An OVF does not magnify at the turn of the focus ring.
- An OVF does not stay equally bright when the environment light dims
- The back screen is more reflective and harder to read than an EVF when the surround environment is very bright (eg: with sun light)

- Most modern Mirrorless cameras have very high resolution EVFs
- Most people prefer to photograph looking at the VF vs Back screen

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08-21-2018, 11:02 PM	#31
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by Tigs Actually EVF with focus peaking and magnification are a great for obtaining accurate focus with mf lenses. Probably better than any DSLR can do for that effect Pentax LV supports both focus peaking and magnification, unlike Canon and Nikon. If you add a Hoodman loupe, you've basically got an EVF.

08-22-2018, 01:17 AM	#32
kypfer Pentaxian Join Date: Jan 2018 Location: Jersey C.I. Posts: 3,592	Originally posted by Tigs Actually EVF with focus peaking and magnification are a great for obtaining accurate focus with mf lenses. Probably better than any DSLR can do for that effect, as reported by many good reviewers out there. Most mirrorless cameras have these aids and that is partially the reason why vintage MF glass is so popular with them. You're probably right, if the camera you're using has "Focus Peaking", unfortunately my NX5 doesn't feature that function ... unlike my Pentax DSLR's which do Once one gets to "a certain age", trying to get close enough to a "Live View" screen to assess the accurate focus gets more and more difficult, even with magnification, therefore one has to rely on an optically corrected viewfinder ... if the viewfinder is of "limited" resolution it simply becomes too grainy to use precisely

08-22-2018, 02:29 AM	#33
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by kypfer Once one gets to "a certain age", trying to get close enough to a "Live View" screen to assess the accurate focus gets more and more difficult, even with magnification, ( A genuine Hoodman on the screen will give you +/- 3 diopters, though, and you can use it in full daylight.

08-22-2018, 02:33 PM	#34
Tigs Senior Member Join Date: Feb 2017 Posts: 146	Originally posted by kypfer You're probably right, if the camera you're using has "Focus Peaking", unfortunately my NX5 doesn't feature that function ... unlike my Pentax DSLR's which do Once one gets to "a certain age", trying to get close enough to a "Live View" screen to assess the accurate focus gets more and more difficult, even with magnification, therefore one has to rely on an optically corrected viewfinder ... if the viewfinder is of "limited" resolution it simply becomes too grainy to use precisely I do not think it is fair to use an eight year old consumer grade camera as a reference point for comparison. - Both EVFs and OVFs usually have diopter correction - An OVF is not compatible with focus peaking - An OVF does not magnify at the turn of the focus ring. - An OVF does not stay equally bright when the environment light dims - The back screen is more reflective and harder to read than an EVF when the surround environment is very bright (eg: with sun light) - Most modern Mirrorless cameras have very high resolution EVFs - Most people prefer to photograph looking at the VF vs Back screen

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