Lens Adapters at DVinfo.net

Randy Johnson · November 7th, 2013, 09:12 AM

I have a question I have a lens adapter for my 80-200 is doesnt give me aperature control but the lens has it. IF I wanted to TRY a lens that doesnt have aperature control on it with this adapter what would the lens setting be? Would it be closed all the time or wide open all the time or would I have to set it in a camera then move it over?

Peter Rush · November 7th, 2013, 10:18 AM

Hi Randy - I've just done a quick test with my EF24-105mm I had it at f2.8 with my metabones and then tried it with a dumb adapter - looked pretty much the same in terms of exposure but obviously no readout for f stop. I then put it back on the metabones and stopped it down to f8. took then lens off, attached it back on the dumb adapter and put it back on the camera - roughly the same exposure as at f8 with the metabones.

Based on this very brief test I would say the aperture on the lens will stay where it was previously.

Pete

Randy Johnson · November 7th, 2013, 11:11 AM

mmm then for just testing a lens for low light performance I can have my friend open up the lens and give it to me to play around with. Nice! thanks. I ordered another adapter but it wont be in before this very dark wedding im going to shoot. Thats where I wanted to test.

Phil Goetz · November 7th, 2013, 02:54 PM

We've got one in stock:

Omega - Sales - Canon EF - E-mount Speed Booster

Peter Rush · November 8th, 2013, 08:33 AM

Randy if you're looking at manual lenses then Samyang/Rokinon are inexpensive and extremely well made - I have the 14mm but I know a lot of guys here use the 85mm.

November 7th, 2013, 09:12 AM	#1
Randy Johnson Trustee Join Date: Sep 2007 Location: Newark, Delaware Posts: 1,067	Lens Adapters I have a question I have a lens adapter for my 80-200 is doesnt give me aperature control but the lens has it. IF I wanted to TRY a lens that doesnt have aperature control on it with this adapter what would the lens setting be? Would it be closed all the time or wide open all the time or would I have to set it in a camera then move it over?

November 7th, 2013, 10:18 AM	#2
Peter Rush Inner Circle Join Date: Nov 2008 Location: UK/Yorkshire Posts: 2,069	Re: Lens Adapters Hi Randy - I've just done a quick test with my EF24-105mm I had it at f2.8 with my metabones and then tried it with a dumb adapter - looked pretty much the same in terms of exposure but obviously no readout for f stop. I then put it back on the metabones and stopped it down to f8. took then lens off, attached it back on the dumb adapter and put it back on the camera - roughly the same exposure as at f8 with the metabones. Based on this very brief test I would say the aperture on the lens will stay where it was previously. Pete

November 7th, 2013, 11:11 AM	#3
Randy Johnson Trustee Join Date: Sep 2007 Location: Newark, Delaware Posts: 1,067	Re: Lens Adapters mmm then for just testing a lens for low light performance I can have my friend open up the lens and give it to me to play around with. Nice! thanks. I ordered another adapter but it wont be in before this very dark wedding im going to shoot. Thats where I wanted to test.

November 7th, 2013, 02:54 PM	#4
Phil Goetz Austinite Join Date: Sep 2013 Location: Austin Posts: 550	Re: Lens Adapters We've got one in stock: Omega - Sales - Canon EF - E-mount Speed Booster

November 8th, 2013, 08:33 AM	#5
Peter Rush Inner Circle Join Date: Nov 2008 Location: UK/Yorkshire Posts: 2,069	Re: Lens Adapters Randy if you're looking at manual lenses then Samyang/Rokinon are inexpensive and extremely well made - I have the 14mm but I know a lot of guys here use the 85mm.