Owner`s manual

3.5. MINOLTA MOUNTS 20
9. Remove the lens hood and attach the filter. I will assume that you are using a Hoya filter with a
standard-thickness mount. Repeat step (7). Now there is a difference – as the area of darkness
approaches the lower left corner, a second area of darkness emerges from the lower left corner and
travels towards the upper right, eventually meeting the darkness approaching from the upper right.
This second area of darkness was not present when there was no filter, and so is the result of adding
the filter.
10. Leave the filter attached and change the focal length to 105 mm and repeat step (7). At this setting
there is no second area of darkness that emerges from the lower left, i.e. adding the filter has not
changed what you see at the 105mm focal length.
11. Leave the filter attached, change the focal length to 24 mm, and reset the aperture to maximum (f3.5
at 24 mm). Repeat step (7). As the area of darkness from the upper right is about to envelope the
lower left corner, you can see that the second area of darkness is just about to emerge from the lower
left corner, i.e. adding the filter is on the threshhold of changing what you see at 24 mm focal length.
12. Check also the 50 mm and 70 mm settings; 50 mm is affected slightly (more than 24 mm; less than
35mm), but 70mm is not affected (same as 105 mm).
13. Repeat steps (7) to (11) for the filters that you want to use (e.g. standard-thickness UV; slim UV;
standard-thickness polarising; slim polarising). If you are not using the standard lens hood, check
that too.
Notes from exemplar testing of 24–104/3.5–4.5 lens with Hoya filter
My conclusion is that a Hoya filter with a standard-thickness mount produces no vignetting at 70–105mm,
is on the threshhold of producing vignetting at 24 mm, and does produce some vignetting in the range circa
30–60mm. This is a strange result, as one would expect vignetting to be worst at the shortest focal length,
but is presumably a result of the optical design of the 24–105 zoom.
3.4 Setting Minolta DiMAGE Scan Dual with VueScan
[Author(s): Petr Holub.]
Settings files are listed in App. A.1 (page 31).
3.4.1 Scanning Fuji Provia
Table 3.1: VueScan parameters for scanning Fuji Provia using Minolta
Scan Dual
Parameter Value Notes
Lock Exposure 1.95 Might be increased to 2.2 if needed.
Long Exposure Pass Yes Reduces noise in dark parts of the image.
Color Balance None
3.5 Minolta mounts
[Author(s): Chuck Cole.]
Question: How many types of minolta mounts are there?
Answer: Four plus. (I don’t know all the details but had the 9xi problem on a Sigma 400mm).