Peter Heckert2

Peter Heckert2

Joined on Feb 11, 2012

Comments

Total: 10, showing: 1 – 10
On Citizen Finetech Miyota creates 3.69m dot equivalent EVF news story (67 comments in total)

If the EVF had 2x and 3x focus magnification would be more useful to me than an increased pixel count. Why increase the pixel count?

Direct link | Posted on Apr 11, 2013 at 16:07:04 UTC as 11th comment | 1 reply
In reply to:

Peter Heckert2: Digiscoping is extreme teleshooting at slow shutter speed and high magnification.

MFT is not good for this in my opinion.
Long exposure times are needed.
The shutter shock ruins the sharpness at 500mm and above. I tried it with G3 and OMD and a Zeiss diascope.
Results with a Sony A57 and electronic first curtain are much sharper.

The best results in digiscoping are achieved by compact cameras,DSLR with mirror lockup, or Sony SLT or better NEX with electronic first curtain. Especially focus peaking is very helful, so MFT is the worst choice for this type of fotography in my opinion.

Goto flickr and search for "Zeiss diascope" and you see the equipment that people use and the -sometimes amazing- results they get.

To add this: The autofocus, especially pinpoint autofocus is usable and it is a pity that shutter shock disturbs so much.

Direct link | Posted on Mar 30, 2013 at 12:58:24 UTC

Digiscoping is extreme teleshooting at slow shutter speed and high magnification.

MFT is not good for this in my opinion.
Long exposure times are needed.
The shutter shock ruins the sharpness at 500mm and above. I tried it with G3 and OMD and a Zeiss diascope.
Results with a Sony A57 and electronic first curtain are much sharper.

The best results in digiscoping are achieved by compact cameras,DSLR with mirror lockup, or Sony SLT or better NEX with electronic first curtain. Especially focus peaking is very helful, so MFT is the worst choice for this type of fotography in my opinion.

Goto flickr and search for "Zeiss diascope" and you see the equipment that people use and the -sometimes amazing- results they get.

Direct link | Posted on Mar 30, 2013 at 12:20:53 UTC as 11th comment | 3 replies
In reply to:

Peter Heckert2: It is to consider, light does not come in from an recticular angle as shown in the advertisement images above.
It comes from all angles with bright lenses and if aperture or focal length (zoom factor) changes, the angles will change. So it must be much more complicated and sophisticated, if this should be an universal sensor for ILS cameras.

I suspect it is for webcams and cellphones only.

I would want to hope so, but no lens does change the angle of a light beam that goes straight through the center of the lens.

This is already a problem with Bayer sensors and wide angle lenses, false colors in corners can occur.

Sorry, I am a little bit pessimistic to see this soon in a Camera ;-)

Direct link | Posted on Feb 4, 2013 at 19:51:02 UTC

It is to consider, light does not come in from an recticular angle as shown in the advertisement images above.
It comes from all angles with bright lenses and if aperture or focal length (zoom factor) changes, the angles will change. So it must be much more complicated and sophisticated, if this should be an universal sensor for ILS cameras.

I suspect it is for webcams and cellphones only.

Direct link | Posted on Feb 4, 2013 at 19:29:28 UTC as 23rd comment | 3 replies

Possibly this must be calibrated to the lens in use and so could prevent usage of arbitrary lenses. So is this for fixed lenses only?

Direct link | Posted on Feb 4, 2013 at 19:07:58 UTC as 26th comment | 3 replies

Set a magnifying lens in front of the sensor, and you get a bigger sensor.
Set a stray lens in front of the sensor and you get a smaller sensor.
Its that easy ;-)

Ok it is not so easy to maintain the focus distances, but it is possible.

Hopefully the ridiculous urban legend about sensor size and DOF will die now.

Peter

Direct link | Posted on Jan 14, 2013 at 16:39:29 UTC as 102nd comment | 2 replies

So they do not release this remarkable lens -as announced- in a Sony Alpha mount?
This is very good news, because then I will not have to pay and purchase it ;-)

Anyway, what is the weight of the lens? Cannot find it anywhere.

Direct link | Posted on Jan 8, 2013 at 21:05:54 UTC as 9th comment | 3 replies
On Adobe announces Photoshop Elements 11 news story (67 comments in total)
In reply to:

Tome gun: As a newbie, I have a question. I have Aperture, Lightroom 4 and Elements 10. Can Elements 11 now replace them all?

Has PSE11 an antialiased (downsampled) graphics display now?
PSE10 has not. When I zoom out of a noisy image, then artifacts are generated and the noise is not downsampled.
This was a major problem for me, because the first thing I do with noisy images is to zoom out, to find the optimum image size.

Direct link | Posted on Sep 26, 2012 at 11:51:21 UTC
On P5180006 photo in dpreview review samples's photo gallery (2 comments in total)

This lens has the same aperture and therefore makes the same images as a 24-70 F5.6 on a full frame camera.
So what is revolutionary or expensive about it?
Please make comparison images and post them.

Best regards,

Peter

Direct link | Posted on May 21, 2012 at 15:40:42 UTC as 1st comment | 1 reply
Total: 10, showing: 1 – 10