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04-30-2012, 11:38 PM   #1
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18mm DX on film SLR, would a small aperture avoid vignetting ?

Hello from Maine,

Well the cheapest wide lens you have is to attach your 18-55mm lens to one of your film SLR's, right ?

Well I haven't tried it with film yet, but I looked it up and as you know there is a lot of vignetting at 18mm.

My question is, can the vignetting be minimized by using a small aperture ?

Like f/22 ?

Thanks,
Craig

05-01-2012, 12:04 AM - 1 Like   #2
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Aperture affects depth of field, not field of view. I don't think it will have any effect. At 18mm, there will always be dark corners

Adam
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05-01-2012, 12:54 AM - 1 Like   #3
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You can look for a FA-J 18-35mm.

It's not stellar optically but not bad either. It's more or less equal to what the 18-55 can do.

And it's cheap !
05-01-2012, 03:27 AM - 1 Like   #4
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https://www.pentaxforums.com/forums/pentax-film-slr-discussion/182335-testing...film-body.html


Good thinking though - a smaller aperture does eliminate one kind of vignetting (shading towards the edges), and may even make a fractionally larger image circle, but like Adam says it will still hard-vignette at the wide end.

But you do get some usable wide angle, and if you don't mind the hard vignette, even more.

05-01-2012, 06:52 AM - 1 Like   #5
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The DA18-55 will vignette on a FF camera below ~35mm at any aperture.

Suggestion: just a few weeks ago I got a manual-focus Cosina-made Vivitar Series 1 19-35/3.5-4.5 for well under US$50. I have seen the AF version on Amazon for a few hundred bucks. Both versions are FF lenses -- I put mine on my FF film ZX-M, no problem. The MF version may be the least expensive wide FF zoom, and mine cost me less than any equally-wide prime. The only comparable prime (for me) was an M42 Tokina-made (branded as Vivitar, Soligor, Lentar etc) 21/3.8.
05-01-2012, 08:43 AM   #6
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Thanks for the information fellas
05-02-2012, 04:04 AM   #7
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Three years ago when I got my K20D and the 18-55 kit lens came with it, I recall trying the lens on my ZX-5. As I remember, it started to show vignetting somewhere around 24 mm. That's based on looking through the viewfinder, but the viewfinder has 92% coverage (I read once), so the vignetting presumably starts earlier (at longer focal length) on film; I don't know where, as I didn't shoot any pix with it. One would really have to make a series of test shots at 24mm ... 25mm ... 26mm etc. (and vary the aperture at each), and print them, to find where the vignetting starts. Or use a FF DSLR if you can borrow one, and that should be equivalent!
--Dave
05-02-2012, 06:02 AM   #8
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QuoteOriginally posted by aurele Quote
You can look for a FA-J 18-35mm.

It's not stellar optically but not bad either. It's more or less equal to what the 18-55 can do.

And it's cheap !
The lens is not that bad either though, as it was the standard kit lens for the last film cameras, and provided with the *istD when it first shipped.

I used it on my PZ-1 when I needed to go wide, because 18mm on digital is roughly equivalent to 28mm on film, but 18mm on film is actually quite wide.

If you really really want wide on film, though, the lowest cost option might just be the Samyang 14mm F2.8 (also marketed under ProOptic, Vivitar, Rokinon, Bower, and a host of other names probably)

05-06-2012, 02:38 PM   #9
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if you have a zx camera use the panorama mode and orget about vignetting
05-08-2012, 08:22 PM   #10
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Thanks,

I guess we could crop our shots in the likeness of panorama too ?
05-10-2012, 01:21 PM   #11
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I've had a lot of fun shooting "cropped" panoramas with a Pentax MZ-7 and the FA-J 18-35mm.

I think that lens is superb for the price. Image quality is good, the only thing that holds it back is the slow aperture. It's a "daylight" lens only.

The MZ-7 and 18-35 are probably the cheapest, lightest way to get that wide on any 35mm camera, of any system.
05-10-2012, 02:39 PM   #12
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QuoteOriginally posted by filmamigo Quote
The MZ-7 and 18-35 are probably the cheapest, lightest way to get that wide on any 35mm camera, of any system.
I mentioned this combo above: My ZX-M (305g) cost me US$13 awhile back. My Cosina-made A-type Vivitar Series 1 19-35 (290g) cost me US$35 a few weeks ago. That's pretty cheap and light and wide! And no need to crop-out vignetting. OK, so the DA18-55 v1 weighs 40g less. So sue me.
05-10-2012, 08:56 PM   #13
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You win RioRico! When I was buying, the MZ-M was at least $30 more than my $40 MZ-7, and the Vivitar was a couple bucks more than the 18-35 FA-J (around $100.)

You've totally got the super-wide angle bargain!

I've since decided to go even wider and use a Sigma 15-30 EX DG, but it was a lot more (about $300.)
05-10-2012, 09:43 PM   #14
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QuoteOriginally posted by filmamigo Quote
You've totally got the super-wide angle bargain!
Thank you, thank you. [/me buffs fingernails on lapel] That 19-35 on FF is about FOV-equivalent to the DA12-24 on APS, an EXCELLENT interiors+scapes setup. I think the two A-type Vivitar Seris 1 zooms I bought from the Marketplace here for US$70 together, the 19-35 (Cosina) and the v3 70-210/2.8-4 (Kiron), will take up permanent residence on my ZX-M. With an occasional trespass by the F35-70 and the K50/1.2.

QuoteQuote:
I've since decided to go even wider and use a Sigma 15-30 EX DG, but it was a lot more (about $300.)
That should be pretty hot. Have fun!
05-14-2012, 07:55 AM   #15
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I also use a Cosina 19-35mm and it's a great lens for the US$100 I paid for it. It rarely leaves my *ist.
Pentax *ist + Cosina 3.5-4.5/19-35 | Flickr - Photo Sharing!

19mm on film really gives lots of possbilities.
Flickr: Jerry Flo's stuff tagged with cosina1935mmf3545
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