Aero Ektar 7" on a Sinar 4x5?

[john_jovic]

<p>I have a 5x4 Sinar and have been considering buying an Aero Ektar 7" to use with it but I don't know enough about the Sinar shutters and if they would be adaptable to such a lens. I know the Aero Ektars tend to be used with a Greflex for the Graflex built in shutter but I'd prefer not to go down that path. I'd prefer to use the lens on the Sinar if there is a way to adapt a shutter. Any tips or experience would be appreciated.<br /><br />JJ</p>

[Aoresteen]

<p>It shoul dwork with the behind the lens shutter. Most likely your will need a custom adapter. The best place to get this done is at SK Grimes. They can cobble just about anything together.</p>

<p><a href="http://www.skgrimes.com">www.skgrimes.com</a></p>

<p>Drop them an email, Adam will let you know what it will take to do this.</p>

<p>The Areo Ektar is optimized for infinty. It will cover 4x5 with no issues.</p>

[kelly_flanigan1]

<p>Aero Ektars have been placed in leaf shutters before; so have V8 engines in Opel-GT's and Ford Pintos too. There is a cost involved.</p>

<p>Aero Ektars were placed in leaf shutters 1/2 century ago; real leaf shutters with many speeds; not the ones that were WW2 ones.</p>

<p>I first saw one in a #5 shutter back in the early 1960's.</p>

<p>About anything is possible if you pump buckets of cash to pay for the conversion.</p>

<p>Still that #5 is so big it is a slow beast.</p>

<p>HERE by Aero Ektar was placed in a 4x5 mount for speed graphic in the 1960's because it was cost effective; placing one in a #5 is like buying a used car.</p>

<p>Newcomers to the Aero Ektar think it is a new thing to place them on a 4x5' when they have been done hundreds of times since Ww2.</p>

<p>Lenses post WW2 were 5 bucks each surplus.</p>

<p>My aero ektar in Exakta slr mount is from the 1950's.</p>

<p>A #5 shutter should still be the cost of a used car' like it was 45 years ago; maybe worse.</p>

<p>It has already been done 45 years ago; thus the question is do you want to pump gobs of cash to get a #5 with a slow shutter anyway?</p>

<p>All you have to do is fork out say 2 to 7k bucks to get a #5 shutter conversion that tops out at 1/50 second once the moon and sun align; maybe 1/20 to 1/30 for mortals</p>

[kelly_flanigan1]

<p>Contact skGrimes if you are actually interested in a valid quote.</p>

<p>They can also give you what they think a #5 shutter can "top out" at the high end; ie 1/50th.</p>

<p>maybe others with vast #5 shutter experience can pop in and mention what their #5 ILEX or #5 whatever really shoots at its top speed.<br>

A giant shutter cannot be fast.<br>

Maybe you should try a Packard air shutter?</p>

[dhbebb]

<p>As the Sinar shutter fits behind the front standard, it will not require any adaptation. What you will need to do is mount the Ektar on a Sinar lens board so that it does not project more than 18.5 mm behind this (or project at all if it is more than 80 mm in diameter). SK Grimes could certainly do this for a (fairly stiff) price, but it would not take great DIY skills to get a Sinar panel with a large enough hole and build a front extension onto it (you could lovingly fabricate this in plywood or sheet metal or take a cheap and nasty approach with a piece of black plastic drainpipe). I personally have not had good experiences with big Compound shutters, they tend to be old and worn out.</p>

[john_jovic]

<p>Thanks David. That pretty much what I was contemplating but I've not had any experience with the Sinar shutters so I really don't know how feasable it really is. I'm fairly hand so could easilly fabricate a suitable mount for the lens, it wouldn't be the first time.<br>

JJ</p>

[john_jovic]

<p>Thanks David. That pretty much what I was contemplating but I've not had any experience with the Sinar shutters so I really don't know how feasable it really is. I'm fairly hand so could easilly fabricate a suitable mount for the lens, it wouldn't be the first time.<br>

JJ</p>

[colin carron]

<p>How about a Packard Shutter? They are fairly restricted but with a bit of bodging would be useable.</p>

<p>http://www.packardshutter.com/</p>

[kelly_flanigan1]

<p>The Sinar shutter tops out I think at 1/60th; thus one is at box camera shutter speeds now.</p>

<p>http://www.sinar.ch/en/products/shutters/178-hinterlinsen-verschluss</p>

<p>I wonder if SINARS shutter's clear opening diameter is large enough for an aero ektars output of say 70 to 75mm?</p>

<p>Since the shutter is a tad back from the rear of the lens; the clear opening would have to be bigger than than this or get vignetting.</p>

<p>Bob Solomon probably knows what the clear opening of the Sinars shutter is.</p>

<p><img src="http://i4.photobucket.com/albums/y148/ektar/Images%20of%20cameras/DSCN1067AEROEKTARREAR02.jpg" alt="" /></p>

<p><img src="http://i4.photobucket.com/albums/y148/ektar/Images%20of%20cameras/DSCN1068AEROEKTARREAR01.jpg" alt="" /></p>

[kelly_flanigan1]

<p>The Sinar Copal Shutter and Barrel-Mounted Lenses:<br>

http://www.kenleegallery.com/html/tech/index.html</p>

<p>http://www.cameraeccentric.com/html/info/sinar_2.html</p>

<p> </p>

[cole_paquette]

<p>I would have loved to have been able to give you the link, but, alas, I can not find it. However, soeone else did exactly that already, and documented how they did it and pictures taken. It did some of the most amazing macro shots I had ever seen.<br>

Cherry trees in Japan was one of the shots, I think that is where the camera is as well. Website was in English.</p>

[john_jovic]

<p>Colin, I haven't properly looked into the Packard shutters but would prefer to use a Sinar because I already have Sinar cameras so I assume it will fit/work together better. But thanks. Maybe the Packard shutters are the best option.<br>

Kelly, thanks for the measurement and the links which are excellent and very informative. I think I need to get my hands on a Sinar shutter now.<br>

JJ</p>

[kelly_flanigan1]

<p>John; yesterday there were two sinar shutters on ebay; one dead and one working one. maybe you could ask the sellers what the "clear diameter" of the shutter is?</p>

 

[john_jovic]

<p>Kelly, it seems the opening is 84.5mm, so it seems well suited for use with the Aero Ektar and many similar (large) lenses.<br /><br />I found this further info about the Sinar shutter.<br>

<a href="004N9q">http://www.photo.net/large-format-photography-forum/004N9q</a><br /><br /><a href="http://www.skgrimes.com/thisweek/7-06-06/index.htm">http://www.skgrimes.com/thisweek/7-06-06/index.htm</a><br>

JJ</p>

[dhbebb]

<p>Afterthought - if you want to use any lens which projects some distance backwards out of the panel with a Sinar shutter, the simplest solution, using only standard Sinar parts, would be to use either an intemediate support or an extra front standard, fit the Sinar shutter to the rear of this, use the bag bellows which you may already have to connect the intemediate standard/support to a front standard, and fit your barrel lens to this. This would surely guarantee that the lens is far enough forward from the shutter not to foul it. Although I am a Sinar user (4x5 and 8x10 Normas), I haven't tried this idea out, but I can't see why it shouldn't work!</p>