16-18-21 WATE focusing scales

[Ktsa5239]

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Can anyone please explain how the scales work on the WATE !? Its really really confusing to me. I know how to read standard focusing scales on my 35mm and longer lenses but the WATE is really strange. When it feels like its at the closest focus, it feels like it hits a notch and continues for alittle bit more. The scale overlaps and I truely have no idea what I'm looking at..... 

The way I've used it is just focus infinity pushing it all the way for landscape. But I feel like the focus feels alittle soft.

[Dennis]

Welcome, dear visitor! As registered member you'd see an image here…

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Take a look at the bottom left side of the lens, where the 21-18-16 numbers are in yellow. Each f/stop has three vertical white lines. The one that reach more DOP, of course is the 16, the first vertical line from the bottom. For example, at f/5.6, with 16mm you here get (approx.) 5feet, at 18mm 1.8mt, at 21mm 8feet. Does it make sense? Sorry for my bad english.

 

 

 

[a.noctilux]

7 hours ago, Ktsa5239 said:

Can anyone please explain how the scales work on the WATE !?

The scale overlaps and I truely have no idea what I'm looking at..... 

The way I've used it is just focus infinity pushing it all the way for landscape. But I feel like the focus feels alittle soft.

This lens has focussing closer (50cm) than coupled rangefinder (to 70cm).

The two "ranges" :

- infinity to 70cm can be RF focussing in the VF

- closer than 70cm, the "notch" means to tell user that the coupling RF is no more available

( use liveview or another distance measurement types )

 

 

From Wiki, this link to the WATE page

'

...

Focusing range - 0.5 m / 1.64 ft < ∞ range from 0.5 to 0.7 m separated by index

...

'

Edited November 18, 2020 by a.noctilux

[Ktsa5239]

12 hours ago, Dennis said:

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

Take a look at the bottom left side of the lens, where the 21-18-16 numbers are in yellow. Each f/stop has three vertical white lines. The one that reach more DOP, of course is the 16, the first vertical line from the bottom. For example, at f/5.6, with 16mm you here get (approx.) 5feet, at 18mm 1.8mt, at 21mm 8feet. Does it make sense? Sorry for my bad english.

 

 

 

I see what you mean about the three vertical lines, still alittle unsure about the lines on the right, on other lenses the left tells you the shortest focus distance and the right tells you the longest focus distance right? In this case, imagine if I turn the focus to put infinity on the f4 first vertical line (21mm) dos that mean my DOF is about 1.5m to infinity at f4? 

[Ktsa5239]

5 hours ago, a.noctilux said:

This lens has focussing closer (50cm) than coupled rangefinder (to 70cm).

The two "ranges" :

- infinity to 70cm can be RF focussing in the VF

- closer than 70cm, the "notch" means to tell user that the coupling RF is no more available

( use liveview or another distance measurement types )

 

 

From Wiki, this link to the WATE page

'

...

Focusing range - 0.5 m / 1.64 ft < ∞ range from 0.5 to 0.7 m separated by index

...

'

That makes so much sense! Thanks

[a.noctilux]

4 hours ago, Ktsa5239 said:

I see what you mean about the three vertical lines, still alittle unsure about the lines on the right, on other lenses the left tells you the shortest focus distance and the right tells you the longest focus distance right? In this case, imagine if I turn the focus to put infinity on the f4 first vertical line (21mm) dos that mean my DOF is about 1.5m to infinity at f4? 

In real life not so.

Dof are calculated for about 0.03mm of circle of confusion ( more info here...)

In my experience in digital M, I'd use the next set for example set aperture to f/5.6 in place of f/4 dof setting scale.

The best to know is just do experimentations in real picture taking.

 

[RF’sDelight]

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vor 14 Stunden schrieb Ktsa5239:

I see what you mean about the three vertical lines, still alittle unsure about the lines on the right, on other lenses the left tells you the shortest focus distance and the right tells you the longest focus distance right? In this case, imagine if I turn the focus to put infinity on the f4 first vertical line (21mm) dos that mean my DOF is about 1.5m to infinity at f4? 

The area between the left and the right lines is the DOF | <  Depth of field  > | in feet and meter.

And with a "zoom" it’s of course different for every focal length. It’s wider for 16 mm and narrower for 21 mm.