Comments for gear.benjacobsenphoto.com http://gear.benjacobsenphoto.com Mon, 23 Jan 2012 16:38:03 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on Filters for lenses that can’t take filters… by Ben http://gear.benjacobsenphoto.com/2010/gear/filters-for-lenses-that-cant-take-filters/comment-page-1/#comment-595 Ben Mon, 23 Jan 2012 16:38:03 +0000 http://gear.benjacobsenphoto.com/?p=942#comment-595 If you look at the images very carefully, you can see the cokin rings I used in both cases. For the sigma 12-24 it's the 95mm ring. The thread pitch doesn't matter is it's not used and stays on the outside of the cowl. For me, I cut the front surface off the cowl, then "press fit" the cowl INSIDE the adapter ring. By press fit I mean used a hammer and some wood blocks. That's what worked for me with the OLD version of the 12-24mm. Not sure what works with the new version and I'm not sure which version you have. But the cowl should be very tight inside the adapter ring and need to be forced in. If you look at the images very carefully, you can see the cokin rings I used in both cases. For the sigma 12-24 it’s the 95mm ring. The thread pitch doesn’t matter is it’s not used and stays on the outside of the cowl. For me, I cut the front surface off the cowl, then “press fit” the cowl INSIDE the adapter ring. By press fit I mean used a hammer and some wood blocks. That’s what worked for me with the OLD version of the 12-24mm. Not sure what works with the new version and I’m not sure which version you have. But the cowl should be very tight inside the adapter ring and need to be forced in.

]]> Comment on Filters for lenses that can’t take filters… by Victor http://gear.benjacobsenphoto.com/2010/gear/filters-for-lenses-that-cant-take-filters/comment-page-1/#comment-594 Victor Mon, 23 Jan 2012 14:07:27 +0000 http://gear.benjacobsenphoto.com/?p=942#comment-594 Hi again Ben, finally the spare lens cowl from Sigma and the 95 mm ring adaptor (remember that I am planning to use with Z Pro instead of X pro). Although I have not yet ordered the cut for the cowl (probably I get someone here at the uni to do it for me), it does not look like is going to fit.. and I explain. The Ring adaptor I bought it is 95 mm but it says th 1.00 (I believe there is another one th 0.75). Between the sigma cowl and the cokin 95 mm ring I think there is a difference of 1-2 mmin diameter... is this normal? I mean did I buy the correct adaptor ring? i think still that I will figure out something but still want toask before starting to cut :) Thank you!! Victor Hi again Ben,
finally the spare lens cowl from Sigma and the 95 mm ring adaptor (remember that I am planning to use with Z Pro instead of X pro).
Although I have not yet ordered the cut for the cowl (probably I get someone here at the uni to do it for me), it does not look like is going to fit.. and I explain. The Ring adaptor I bought it is 95 mm but it says th 1.00 (I believe there is another one th 0.75).
Between the sigma cowl and the cokin 95 mm ring I think there is a difference of 1-2 mmin diameter… is this normal? I mean did I buy the correct adaptor ring? i think still that I will figure out something but still want toask before starting to cut :)

Thank you!!

Victor

]]> Comment on Filters for lenses that can’t take filters… by Ben http://gear.benjacobsenphoto.com/2010/gear/filters-for-lenses-that-cant-take-filters/comment-page-1/#comment-590 Ben Wed, 07 Dec 2011 14:28:14 +0000 http://gear.benjacobsenphoto.com/?p=942#comment-590 the 95mm part is the physical size of the lens hood/cap, so yes, you need that ring size to make this work. Good Luck! Ben the 95mm part is the physical size of the lens hood/cap, so yes, you need that ring size to make this work.

Good Luck!
Ben

]]> Comment on Filters for lenses that can’t take filters… by Victor http://gear.benjacobsenphoto.com/2010/gear/filters-for-lenses-that-cant-take-filters/comment-page-1/#comment-589 Victor Wed, 07 Dec 2011 05:33:50 +0000 http://gear.benjacobsenphoto.com/?p=942#comment-589 Hi Ben, one quick question: I guess that if I use the Z pro cokin system with the Sigma 12 24 mm the adaptor ring I have to use is also 95 mm? Notice that I do not have full frame, I just bought the neutral GND z pro filter kit.... and I am a little bit regretting it, because I was planning one day to have full frame... Anyway, thanks for the article... it was just was I was looking for! Victor Hi Ben,
one quick question: I guess that if I use the Z pro cokin system with the Sigma 12 24 mm the adaptor ring I have to use is also 95 mm? Notice that I do not have full frame, I just bought the neutral GND z pro filter kit…. and I am a little bit regretting it, because I was planning one day to have full frame…

Anyway, thanks for the article… it was just was I was looking for!

Victor

]]> Comment on ThinkTankPhoto Retrospective 10 by Justin http://gear.benjacobsenphoto.com/2010/gear/thinktankphoto-retrospective-10/comment-page-1/#comment-582 Justin Fri, 16 Sep 2011 19:14:07 +0000 http://gear.benjacobsenphoto.com/?p=1000#comment-582 Cool, thanks added you on both. Oops, I should have asked D700 w/ 28-300 and D5000 w/ 50 1.4 attached. Kind of sitting side by side. Thanks again! Justin Cool, thanks added you on both.

Oops, I should have asked D700 w/ 28-300 and D5000 w/ 50 1.4 attached. Kind of sitting side by side.

Thanks again!

Justin

]]> Comment on ThinkTankPhoto Retrospective 10 by Ben http://gear.benjacobsenphoto.com/2010/gear/thinktankphoto-retrospective-10/comment-page-1/#comment-581 Ben Fri, 16 Sep 2011 17:59:45 +0000 http://gear.benjacobsenphoto.com/?p=1000#comment-581 Yes: twitter: http://twitter.com/#!/benjacobsenfoto fb: https://www.facebook.com/benjacobsenphoto g+: https://plus.google.com/113642068315114940863 and my blog has officially moved to one URL now and is merged: http://www.benjacobsenphoto.com/recent-shoots/ Thanks, Ben Yes:
twitter: http://twitter.com/#!/benjacobsenfoto
fb: https://www.facebook.com/benjacobsenphoto
g+: https://plus.google.com/113642068315114940863

and my blog has officially moved to one URL now and is merged: http://www.benjacobsenphoto.com/recent-shoots/

Thanks,
Ben

]]> Comment on ThinkTankPhoto Retrospective 10 by Justin http://gear.benjacobsenphoto.com/2010/gear/thinktankphoto-retrospective-10/comment-page-1/#comment-580 Justin Fri, 16 Sep 2011 17:24:52 +0000 http://gear.benjacobsenphoto.com/?p=1000#comment-580 Thanks Ben, I really like your site! Are you on twitter or G+? Take care, Justin Thanks Ben, I really like your site! Are you on twitter or G+?

Take care,

Justin

]]> Comment on ThinkTankPhoto Retrospective 10 by Ben http://gear.benjacobsenphoto.com/2010/gear/thinktankphoto-retrospective-10/comment-page-1/#comment-578 Ben Thu, 15 Sep 2011 18:06:57 +0000 http://gear.benjacobsenphoto.com/?p=1000#comment-578 Yes, a retro 10 should be able to fit those 2 bodies and lenses assuming the 28-300 isn't any longer then the 70-300. I've had a 5D and 7D in there together plenty of times. The limit is the length of the lens on the body. Ben Yes, a retro 10 should be able to fit those 2 bodies and lenses assuming the 28-300 isn’t any longer then the 70-300. I’ve had a 5D and 7D in there together plenty of times. The limit is the length of the lens on the body.

Ben

]]> Comment on ThinkTankPhoto Retrospective 10 by Justin http://gear.benjacobsenphoto.com/2010/gear/thinktankphoto-retrospective-10/comment-page-1/#comment-577 Justin Thu, 15 Sep 2011 17:45:41 +0000 http://gear.benjacobsenphoto.com/?p=1000#comment-577 Great review. Do you think it would hold a D700 w/ 28-300 and a small D5000 w/ 50 1.4 attached? Thanks! Justin Great review. Do you think it would hold a D700 w/ 28-300 and a small D5000 w/ 50 1.4 attached?

Thanks!

Justin

]]> Comment on Filters for lenses that can’t take filters… by Ben http://gear.benjacobsenphoto.com/2010/gear/filters-for-lenses-that-cant-take-filters/comment-page-1/#comment-569 Ben Fri, 29 Jul 2011 11:38:22 +0000 http://gear.benjacobsenphoto.com/?p=942#comment-569 No vignette with one filter all the way to 12 (sigma) or 14 (nikon). Not sure with two filters, but I think I was able to use both. If not at the widest, certainly in just slightly. As for the 17mm, there are some guys on PotN (in the 17mm sample thread) who've successfully used a spare hood and made an adapter for it. They're even using it with 4x6 panel filters, but those DO vignette if you do some crazy tilts or shifts, but that should mean the X-pros would work VERY easily using the same method. And yeah, using a hack/DIY McGyver trick to make your adapter ring is crucial with any of these setups to not just avoid flare in the traditional sense, but light reflecting off the back side of the filters. No vignette with one filter all the way to 12 (sigma) or 14 (nikon). Not sure with two filters, but I think I was able to use both. If not at the widest, certainly in just slightly. As for the 17mm, there are some guys on PotN (in the 17mm sample thread) who’ve successfully used a spare hood and made an adapter for it. They’re even using it with 4×6 panel filters, but those DO vignette if you do some crazy tilts or shifts, but that should mean the X-pros would work VERY easily using the same method. And yeah, using a hack/DIY McGyver trick to make your adapter ring is crucial with any of these setups to not just avoid flare in the traditional sense, but light reflecting off the back side of the filters.

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