Aperture Range at DVinfo.net

Jon Robertson · January 4th, 2015, 02:24 PM

Hi Folks

Considering getting an X70 and possibly an AX100 to go alongside it. I sold a bunch of gear I wasn't using to get the CX900 as a third cam and after just one shoot have been impressed enough to think about these other two cams in my line up.

The Sony specs state an aperture range of f2.8 - f4.5 on all three of these cams but my CX900 is at f4.0 at the longest end of the zoom range. Just wondering if the X70 and AX100 are the same in this respect. Colour me confused.

Cheers

Jon

Jon Robertson · January 5th, 2015, 04:42 AM

Could anyone here do a quick test for me to see what the f-stop is fully open and zoomed all the way in?

Tim Akin · January 5th, 2015, 06:45 AM

It's 2.8 wide to 4.0 at full zoom Jon.

Jon Robertson · January 5th, 2015, 07:00 AM

Awesome Tim. Thank you. Can't figure for the life of my why Sony state 2.8 - 4.0.

Noa Put · January 5th, 2015, 07:21 AM

Maybe because it is f2.8 to f4.0? :)

Jon Robertson · January 5th, 2015, 09:09 AM

Quote:

Originally Posted by Noa Put

Maybe because it is f2.8 to f4.0? :)

Oops. Sorry Noa, I meant to say 2.8 - 4.5. Those are the specs given on the Sony site for the cx900, ax100 and x70. Odd.

Dave Blackhurst · January 6th, 2015, 01:30 AM

Sony is infamous for "spec drift" or "mis-specification"... one needs to do as you've done, and check multiple sources at a minimum, and preferably someone with the unit in their hands right in front of them!

But 4.0 is the minimum aperture for the AX100...

January 4th, 2015, 02:24 PM	#1
Jon Robertson Regular Crew Join Date: Sep 2008 Location: Edinburgh Scotland Posts: 58	Aperture Range Hi Folks Considering getting an X70 and possibly an AX100 to go alongside it. I sold a bunch of gear I wasn't using to get the CX900 as a third cam and after just one shoot have been impressed enough to think about these other two cams in my line up. The Sony specs state an aperture range of f2.8 - f4.5 on all three of these cams but my CX900 is at f4.0 at the longest end of the zoom range. Just wondering if the X70 and AX100 are the same in this respect. Colour me confused. Cheers Jon

January 5th, 2015, 04:42 AM	#2
Jon Robertson Regular Crew Join Date: Sep 2008 Location: Edinburgh Scotland Posts: 58	Re: Aperture Range Could anyone here do a quick test for me to see what the f-stop is fully open and zoomed all the way in?

January 5th, 2015, 06:45 AM	#3
Tim Akin Major Player Join Date: Nov 2008 Location: Newbern, TN Posts: 414	Re: Aperture Range It's 2.8 wide to 4.0 at full zoom Jon. __________________ Tim

January 5th, 2015, 07:00 AM	#4
Jon Robertson Regular Crew Join Date: Sep 2008 Location: Edinburgh Scotland Posts: 58	Re: Aperture Range Awesome Tim. Thank you. Can't figure for the life of my why Sony state 2.8 - 4.0.

January 5th, 2015, 07:21 AM	#5
Noa Put Inner Circle Join Date: Jun 2007 Location: Belgium Posts: 9,510	Re: Aperture Range Maybe because it is f2.8 to f4.0? :)

January 6th, 2015, 01:30 AM	#7
Dave Blackhurst Inner Circle Join Date: Feb 2007 Location: Apple Valley CA Posts: 4,874	Re: Aperture Range Sony is infamous for "spec drift" or "mis-specification"... one needs to do as you've done, and check multiple sources at a minimum, and preferably someone with the unit in their hands right in front of them! But 4.0 is the minimum aperture for the AX100...