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Archive 2013 · Voigtländer 15/4.5 aperture question
  
 
kj_vogelius
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p.1 #1 · Voigtländer 15/4.5 aperture question


Sorry for the new topic, did a new search & couldn't find anything.

Quick question for those of you who use the M-mount CV15 – do yours show the aperture blades when wide open? I.e. it looks like it's stopped down.

Just received mine & just want to make sure that it's not faulty.Can't remember I've seen this in any other lens I've had.

Thanks!



Jan 08, 2013 at 07:02 PM
LightShow
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p.1 #2 · Voigtländer 15/4.5 aperture question


I don't have mine with me, but IIRC you can see the iris at the edge.


Jan 08, 2013 at 07:04 PM
jcolwell
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p.1 #3 · Voigtländer 15/4.5 aperture question


My Mamiya macro Sekor 60/2.8 does that, too.


Jan 08, 2013 at 07:13 PM
kj_vogelius
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p.1 #4 · Voigtländer 15/4.5 aperture question


Ok. Thanks. I can see the iris at the edge of some other lenses as well, but this seems more pronounced.

Here's a photo of how it looks



Jan 08, 2013 at 07:15 PM
zhangyue
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p.1 #5 · Voigtländer 15/4.5 aperture question


No, looks not right to me. Though I don't have this particular lens.
But can't you try to click through the aperture to see it has WO and minimal Aperture and also check exposure by each click?(though there will not be exact 1EV difference due to design and vignette, but at least you can see if it is obviously wrong?)



Jan 08, 2013 at 07:36 PM
mortyb
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p.1 #6 · Voigtländer 15/4.5 aperture question


My Voigt 15/4.5 is the same. I believe it's normal.


Jan 08, 2013 at 08:26 PM
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p.1 #7 · Voigtländer 15/4.5 aperture question


My R.Topcor 135/3.5 preset shows a whole lot of iris when wide open.


Jan 08, 2013 at 10:13 PM
 

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thrice
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p.1 #8 · Voigtländer 15/4.5 aperture question


It is normal, and visible on the 12/5.6 as well.


Jan 08, 2013 at 10:18 PM
Makten
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p.1 #9 · Voigtländer 15/4.5 aperture question


zhangyue wrote:
No, looks not right to me.


Why not? There are plenty of lenses that does not open the aperture fully at the largest f-stop. The 15/4.5 does not and it's well known. Probably because it would have rendered an unsharp image and/or terrible vignetting.

Edit: And yes, I have owned one of these.



Jan 08, 2013 at 10:20 PM
JimBuchanan
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p.1 #10 · Voigtländer 15/4.5 aperture question


It looks normal to me , too.


Jan 09, 2013 at 05:52 AM
kj_vogelius
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p.1 #11 · Voigtländer 15/4.5 aperture question


Thanks a lot everyone. Glad to hear it's as it should. Hadn't seen this type of design before, so was surprised by it. Granted, I've probably not owned as many lenses as most of you, at least not as Makten.

Now I just need to learn to shoot wide...



Jan 09, 2013 at 10:23 AM
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p.1 #12 · Voigtländer 15/4.5 aperture question


It's easy, start by going somewhere that has a good vantage point or interesting subject, and emulate what's in the pano thread, you can't go wrong.
Sunrise's and sunset's are a safe bet too.
If you've never shot wide before, take just the one lens and don't stop at just one picture of a subject, get to know it, and cruising around in live view makes finding great compositions a breeze, and fun.



Jan 09, 2013 at 11:27 AM
wfrank
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p.1 #13 · Voigtländer 15/4.5 aperture question


May I ask where you found that lens vogelius [in Sweden]?, I've been looking for a "version II" but they dont seem to turn up often.


Mar 17, 2013 at 09:57 PM
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p.1 #14 · Voigtländer 15/4.5 aperture question


A PM may work better.


Mar 18, 2013 at 12:26 AM





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