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-   -   Under-exposed images/Aperture and the FX1000/Lens ramping (https://www.dvinfo.net/forum/sony-hvr-z5-hdr-fx1000/140766-under-exposed-images-aperture-fx1000-lens-ramping.html)

Tom Hardwick February 19th, 2009 04:52 AM

Quote:

Originally Posted by Martin Duffy (Post 1012593)
Tom, what are your thoughts on that? Using a 43mm stepping up to 72mm? Most likely to get a big ring around the edges I suspect?

If you're fitting a 43 mm lens onto a 72 mm camera filter thread, I'd say forget it. The other way around will be fine though.

Silas Barker February 18th, 2010 05:10 PM

Quote:

Originally Posted by Jeff Harper (Post 988084)
It is a problem for sure Tim. It is so disappointing I'm sitting here totally dejected, I just bought my second FX1000, as you know. I would have tried using an FX1or Z1 with my first FX1000 if I had known about this.

I wonder if using an add-on lens would be useful? I don't understand optics very well, so I don't know. What does the signature of the one guy around here say? "Instructions? I just want to push buttons!" That sums me up pretty well, though I'm not proud of my lack of technical knowledge.

For today I have to work with what I have.

Hey Jeff, I have the Sony Z5 Camera which is much like the Fx1000. I just wondered about the same things your talking about and if you have found a solution. I also enjoy EXTREME close ups. There is no way to change the 20x zoom ramping effect. But if you used a lens tele adaptor would that work?

While the low light capability of the Z5 is better then the Z1 (even zoomed in all the way) it would be great to find a way to have more light still.

Let me know your thoughts and if you have found a solution,
Thanks!

Rob Morse February 18th, 2010 06:30 PM

If I have enough light, I will sometimes keep it at 3.4 so it stays consistent through the zoom. That way when you color correct or change the brightness in post, it stays level. Another way to correct the ramping, if you don't have enough light, is to gain up. You can set the gain switch from fast-middle-smooth. You can set the AGC level for the best picture and then set the gain to auto. Of course you would probably have to change those settings after the service. Auto is a good feature in certain situations, when used correctly that is. Finally, you can try the AE shift. It's a very slight adjustment but it does work. Like anything though, you need the correct setting for a specific environment.

The 20x lens is still better than the 12x when it's needed. As I mentioned elsewhere, sometimes it's the difference between getting that nice close-up or having to settle for a head and shoulder shot. I agree about the light, I always want a little more. In all fairness though, I can correct more in post than I could with the PD-170 (shooting in HDV).

Rob Morse February 18th, 2010 06:34 PM

Quote:

Originally Posted by Tom Hardwick (Post 994696)
The new Z5 has the wide-angle equivalent of a 29 mm lens. In camcorder terms this is pretty damn good, but in wide-angle terms it's just plain dull. Way back in the 70s a 28 mm lens was considered wide and a 20 mm lens was seen as super-wide.

So here we are 35 years later and we're nearly but not quite in the 'wide' ball park. So yes, I contend that you do indeed need a wide-angle converter, which means buying a 3 mm lens for your Z7. Not many of them about though. tom.

I am coming to the realization that a wide angle lens is a must. Which one is the question.

Tom Hardwick February 19th, 2010 01:16 PM

Quote:

Originally Posted by Martin Duffy (Post 1012593)
Hey, want to sell that Canon 1.4 Tom???!!!!!

Yes, as a matter of fact I do Martin. But where are you? I'm in England, UK. This Canon C-8 tele 1.4x has a 67 mm attachment thread and I use it very successfully with a slim 67 > 72 adapter on the Z1. I also have a rectangular Cavision hood for it.

tom.


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