Similar Posts

Subscribe
Notify of
8 Answers
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
IXXIac
1 year ago

Hello

so daylight autumn sun noon without clouds results in Central Europe by light value 11

In the case of ISO 50 and EV Shift -2 and aperture 22 a shutter time of 1ne second is given.

But not all cameras can be “pushen” under ISO 100 not all optics can be hidden on 22 or even deeper or sensors with many megapixels then go into the diffraction and the motif becomes “unsharf”

Tips

many opticians have flat 2″ glass crowns as “muster” under it also glasses for sunglasses. Every year the opticians get new pattern glasses the old migrating into the old glass or even in the basement. In doubt one simply takes some glass pane with

Construction markets or local metal builders/Schlosser may have. Welding glass in grey which is available as 5cm rounds and as 110×90 and 110×50. In doubt, a clear protective glass is included.

Because the clear glass can coat a painter/painter with an RAL grey clear lacquer mixture. RAL 7021 Black-gray applied in a batch-thin (sputtered) can still be photographed or the former center spot filters were built.

Welding glasses are usually float glass with glazing and variable thickness, so the image quality tends to fade softly as well as by massive.

Eyeglass lenses are usually ground optical glass. In the past, opticians have developed filters or near lenses for cameras in times where little was to be done, and this was also produced in the curriculum for opticians until the 80s. Many village optics could not yet have a discounter large chains like Fielmann, Binder or Apollo

SirKermit
1 year ago

It’s all about software, though something more complicated: https://www.adailytravelmate.com

Long-term exposure does not always have to arise with the camera. It can also be generated on the computer. In a simple processing process, several photos are combined to form an image. Stacking (stacking) or also of the fake or software gray filter are mentioned here. Similarly, long-term exposure works on the day. The finished image is not created in the camera, but in later post-processing on the computer.

For a long-term exposure on the day, you simply take several pictures one after the other. The more photos the better, because the total exposure time adds up with every other photo. For example, if you take 30 photos with 1/30 second exposure time each, an image with the effect of a long exposure of 1 second exposure time is created.

In order that the stacked photo does not appear overexposed, the individual photos are not simply added technically, but are joined together by an average value. To be quite accurate, it is not the mathematical mean value, but the median value. This is better suited for uneven brightness distributions. The effect: People who are visible on individual images disappear and running water becomes evenly smooth.

However, you need computing time for stacking the photos.

Uneternal
1 year ago
Reply to  SirKermit

The only one who knows. 👍🏻

Uneternal
1 year ago

You can add several individual exposures (i.e. a series of images) to Photoshop or similar programs.

Here is a tutorial in English (actual tutorial starts at 5:43):

https://youtu.be/VLFQMeHDRkQ?feature=shared&t=343

habakuk63
1 year ago

Yeah, but it’s not perfect. You should lower the ISO-WERT to the absolute minimum that helps.

Mediachaos
1 year ago

Only in very limited scope. When the sensor is overloaded and the image is ripped out, it is simply no longer a usable image content at the corresponding locations where it is particularly bright. Because you can not produce with appropriate post-processing.

What is actually possible depends on many factors and must be simply tested.

sgtepic
1 year ago

I can’t. ISO to 50 and aperture all too, i.e. 18 or 22 (depending on lens) but quite much longer than with this setting cannot be exposed

Rolajamo
1 year ago

Overexposure almost does not get out.

So if you can’t get down so far with aperture and ISO that a reasonable exposed image comes out at the desired exposure time, then you can forget that.