Search results for 'back focus' - page 401

Use * as a wildcard for partial matches


netbook advice

A bit more on dongles. Orange have joined with T-mobile and are now "Everything Everywhere", stop laughing at the back. (they may as well have call it "all things to all people". o2 dongle includes access to a wi-fi clouds where local wifi is available. ------------ Also you get the 12v ...

Posted by dougf8 on 12/10/2010 - 15:49

netbook advice

XP or Win 7 should do. You won't need any fancy versions. XP is still supported (just) and will be OK as long as the firewall and antivirus people support it. Not sure if you can still get them though but the XP machines will be cheaper I expect. As much software as you want. My list includ...

Posted by dougf8 on 12/10/2010 - 20:53

depth of field... calculator

Hello I am using this website: http://www.dofmaster.com/dofjs.html Recently bought a Tamron 17-50 f2.8 - I believe the sweet spot is f4 (haven't tested yet but I found a website the other day, can't find it anymore, where has a test of sharpness for every single lens at every single aperture, s...

Posted by boudou701 on 14/10/2010 - 13:32

depth of field... calculator

Just to clarify: The DoF calculator will give you the hyperfocal distance. That shows you what will be acceptably in focus. The MTF (Modulation Transfer Function) of the lens is another thing again :) That's the point at which the lens exhibits the best resolving power - effectively the point...

Posted by MattMatic on 14/10/2010 - 14:10

depth of field... calculator

I know that's my whole point, instead of shooting a lanscape at f16 I might have a much better result at f4 as will have almost everything in focus (except the very close foreground)

Posted by boudou701 on 14/10/2010 - 15:14

Taking photos on London Underground?

I wanted to do a shoot on the LU for an A level project and wanted access and time to set up things properly. It took a few minutes to get a proposal together and send off with a photo and I thought £25 (fee at the time) was good value for money. Unfortunately other things got in the way but inste...

Posted by Pentaxophile on 16/10/2010 - 12:52

Taking photos on London Underground?

Heard a radio story a couple of days back about people being charged to use images of houses/properties on greetings cards and calendars. I can't remember the programme or the organisation but will do some sniffing. Hope this triggers somebody else's memory. Could have been and the programme ...

Posted by dougf8 on 25/10/2010 - 09:52

Taking photos on London Underground?

Well since I posted my comments above I can give you an answer...sort of. Yesterday on my way back from a photoshoot I decided to try and get an image of a train coming through the tunnel with a long exposure. I got off at Liverpool St and walked to the end of the platform armed with my K-7 and ...

Posted by RobE17 on 28/10/2010 - 18:21

What's next?

+ 2. In fact I'm pretty sure I remember Pentax saying a couple of years ago that they thought this was more important than megapixels. I don't think we've cracked high ISO fully yet. The 12,800 (non-expanded) ISO of the 1D mk IV may seem like a lot but it only allows you to increase your shutte...

Posted by greynolds999 on 16/10/2010 - 10:41

What's next?

The other thing which could be interesting could be the idea of a transparent sensor. This would mean you could have multiple sensors all at slightly different focus points. You would then be able to take a shot and pick which of the images was in focus (or even combine them into a single image). N...

Posted by fatspider on 16/10/2010 - 10:45

What's next?

Quite a lot of people are able to look at normal stereo photo pairs and see in stereo without a viewer. The viewer just tricks the eye a bit better. 3D films came out years ago, but they used two projectors in sync. They had problems when one film snapped and had to be spliced back causing th...

Posted by Algernon on 16/10/2010 - 19:35

What's next?

The manufacturers are driving new developements, and they are all chasing 3D filming at present. Why? because they get to sell people new displays, yet again. Its got to the point they are forcing the filmmakers & broadcasters to make things in 3D, even though there is virtually no demand from consu...

Posted by flossie on 19/10/2010 - 10:43

What's next?

I think there are really 3 drivers. The general march of technology, consumer features and enthusiast features. The general march of technology means better sensors, more FPS, more DR, higher usable ISO, quicker focusing end so on. That should apply across the board and the next few years will se...

Posted by nass on 19/10/2010 - 12:04

What's next?

Focus bracketting is something that would interest me. It'd be very easy to impliment in firmware too. Just select a start point, an end point, and number of steps in between. Job done.

Posted by Mannesty on 19/10/2010 - 20:22

What's next?

Focus bracketting is something that would interest me. It'd be very easy to impliment in firmware too. Just select a start point, an end point, and number of steps in between. Job done. Why not take it a step further and also put in an automatic hyperfocal focus distance. The camera sees what foc...

Posted by Anvh on 19/10/2010 - 20:39

What's next?

I'd settle for what my sony hdr hc1 video cam has... a touch screen... set to focus, you tap the screen anywhere it focuses right there. set for spot exposure, you tap the screen it spot meters right there... then you can set up two individual settings for focus, zoom, and exposure, hit preset ...

Posted by Don on 19/10/2010 - 20:47

What's next?

I'd settle for what my sony hdr hc1 video cam has... a touch screen... set to focus, you tap the screen anywhere it focuses right there. set for spot exposure, you tap the screen it spot meters right there... The cheaper Sony cameras also do that. I've got an old DCR-TRV33E that does it. I woul...

Posted by Algernon on 19/10/2010 - 21:10

What's next?

I'd settle for what my sony hdr hc1 video cam has... a touch screen... set to focus, you tap the screen anywhere it focuses right there. set for spot exposure, you tap the screen it spot meters right there... then you can set up two individual settings for focus, zoom, and exposure, hit preset ...

Posted by flossie on 26/10/2010 - 11:31

What's next?

I'd settle for what my sony hdr hc1 video cam has... a touch screen... set to focus, you tap the screen anywhere it focuses right there. set for spot exposure, you tap the screen it spot meters right there... then you can set up two individual settings for focus, zoom, and exposure, hit preset ...

Posted by Don on 26/10/2010 - 14:43

So why did you choose your user name?

Mines from my line of work (Obvious?) I think I'd just used it for joining a racing forum (which I've hardly been back too) so it was fresh in my mind.

Posted by petrochemist on 17/10/2010 - 00:45

Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo