Maybe there aren't many newbies that start with 4x5 (and I'm not sure about the OP's background). For newbies, something like a Kodak Ektar 127mm or similar Wollensak Raptor 127mm are not expensive and produce photos of sufficient quality to motivate/reward. I'd spend money on a CLA to get things dialed in.
It tells me a pic that is 569x602 is too large, that's the smallest resize option I have.
Is it a jpeg?
I'm in the middle of building up my LF kit again and starting with 150 and 90. i'd like to have more but i suffer from paralysis by analysis so i'll keep it simple ... for now.
My Fuji W 180/5.6 (inside writing) is currently my main 5x7 lens. I have been tempted to find an inexpensive Fuji W 180mm with outside writing (less coverage than inside writing, but plenty for 4x5) to keep in my 4x5 kit.
The 180 Fuji CM-W weighs 409 grams (0.9 lb). The Fuji A 180/9.0 tips in at a third of that if weight is a major consideration. (and only 9mm less coverage)
Yeah, hence.......wanting opinions on a preferred first, or starter, 4x5 lens.
Although the A series are optimized for close up and copy work, rather than infinity focus landscapes.
i don't know where you got those numbers. they don't match 4x5's image dimensions or film dimensions or 4"x5".4/5
Width = 108 mm, Length = 120 mm, Diagonal = 161.443 mm
that's not right either.I get different angles and field of view for 4/5.
https://www.pointsinfocus.com/tools/depth-of-field-and-equivalent-lens-calculator/#{%22c%22:[{%22f%22:19,%22av%22:%224%22,%22fl%22:150,%22d%22:30480,%22cm%22:%220%22}],%22m%22:0}
i don't know where you got those numbers. they don't match 4x5's image dimensions or film dimensions or 4"x5".
that's not right either.
i don't know where you got those numbers. they don't match 4x5's image dimensions or film dimensions or 4"x5".
that's not right either.
| Angle of View Method 1: |
|
θ the angle of view s is the focus distance h is the frame dimension f is the focal length |
| Angle of View Method 2: |
|
|
| Field of View: |
|
| Use Method | |
| Does your lens extend when focusing? | 2 |
| Does your lens use an inner focusing system or is a video or cine lens? | 1 |
i shoot 4x5. i own 4x5 film and 4x5 film holders. i also own a ruler. 4x5 is not 108mm x 120mm.Where do you get your data? Do you have a link?
that has nothing to do with what i said. doesn't matter what equations you're using if you feed the wrong numbers into them. a lot of online calculators and apps like that one are incorrectly using 4x5's film dimensions instead of the image area dimensions.Here's the calculator;s author;s method of calculating the angle. Note there are two methods. Which one is wrong or both?
calculator site with explanation
Angle and Field of View
The calculator calculates angle of view using two different methods. Both arrive at the same result at infinity focus, but differ at closer focusing distances. Since fields of view are calculated using the angle of view, there are also two calculated values for the field of view at the specified distance; one for each method. Further, neither method is completely accurate at very close focusing distances. For more information on this, see Calculating the Angle of View: When Theory Meets Practice.
Angle of View Method 1: θ the angle of view s is the focus distance h is the frame dimension f is the focal length Angle of View Method 2: Field of View:
Method 1 is a “naive” method that assumes that the angle of view for the format, which is the angle of view at infinity focus, does not change when the lens is focused closer.
Method 2 compensates for lens extension when focusing closer than infinity.
Which method should you use?
Use Method Does your lens extend when focusing? 2 Does your lens use an inner focusing system or is a video or cine lens? 1
i shoot 4x5. i own 4x5 film and 4x5 film holders. i also own a ruler. 4x5 is not 108mm x 120mm.
that has nothing to do with what i said. doesn't matter what equations you're using if you feed the wrong numbers into them. a lot of online calculators and apps like that one are incorrectly using 4x5's film dimensions instead of the image area dimensions.
Is there a way to convert his angles to correct ones? Do you have a chart or calculator that calculates it correctly to what appears on the film?Right. The picture angle is what the 4x5 sheet of film sees. That is different from the angle of coverage -- which is the image that the lens produces. Unfortunately some people use "angle of view" which can mean either of these to different people.
Is there a way to convert his angles to correct ones? Do you have a chart or calculator that calculates it correctly to what appears on the film?
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