hha

Very nice, all night exposure. When I worked with the Palomar plates long time ago their 11x11 degree  size was considered "wide-field". hha

Have you tried adjusting the focus? The faint stars images look significantly out-of-focus.  This condition would create the observed halo around bright stars. hha

I took a look at the Cor Bor area last night from my (red zone) backyard. All I was able to see was Jupiter, Vega and Antares. So I used my Skeye app to calculate the azimuth and elevation of ...

Mario: Not bad from a light polluted area, with the moon up. You got to about magnitude +13 (near a CorBor). Hard to tell since you scaled the image down to about 1 Mpixel. Why did you use such a ...

I have the D3300 and the D7200.  For a walk around landscapes I prefer the D3300 with the 18-55mm.  It also does wonderful close-ups.  I got the D7200 because it has the 5 step bracketing for ...

Mario: It is not a long sequence of images I am looking for, but two 20 second pictures (jpeg OK)  one with, the other without the filter.   I hope you can squeeze in the time as the nights at high ...

Mario: Great picture. Since you used the CLS-CCD filter I am assuming that it was taken from your yellow zone . That CLS filter may help me and many members of this forum to do more from yellow ...

Markus: On the Nikon 18-55 mm kit lenses the barrel containing the front element rotates relative to the barrel which sets the focal length. Set the lens to 18mm. Determine the infinity position ...

The 6 Mp image below was created using a Nikon D3300 at iso800, Nikkor 85mm f/1.8 stopped down to f/2.8 40 x 30seconds. All subframes were saved a 6 Mp normal quality JPEG images. The camera was ...

Mario: It looks like this filter allows you to get good results from a light polluted site. How similar is your filter to the one described in ...

Roger: Very nice illustration. Your 27 minute 200 mm f/2.8 has a factor 8 larger CFA than my 85mm f/1.8 at f/2.8 20 minute image. Having 8 times more photons helps. I noticed that the image was ...

https://www.dpreview.com/forums/post/59541294

Here is the 6 Mp JPEG pictures straight out of the camera. The D3300 has 24 Mp, but I let the camera do the 2x2 binning. It does a better job than saving as 24 Mp, then doa 2x2 bin as part of the ...

Mario: The comparison of your, mine and Clark's result contain a lot of interesting information. 1. Your and Clark's result are of comparable integration time (40 and 52 minutes), but he has a ...

Mario: Your result is impressive picture, given the limitations of your light polluted site. Last February I took a very similar picture of the Orion constellation from Mt.Pinos, about 90 miles NW ...

I have used the 18-55mm G-DX-VR kit lens at f/3.5 with my D3300 for milky way shots (15 sec at iso1600). The image quality is very respectable all the way out to the corners, if you don't zoom in ...

Nick: It took the object about 8 minutes to travel through a fraction of your camera's field of view. Polar satellite overpass typically last 5 -10 minutes from horizon to horizon. Since you know ...

Nice shot.  Intesrt to note the weak correlatiion between the Halpha image and the visible light imahe. It has been a long time since there have been sunspots. There are interesting publication ...

I was trying to evaluate the diffraction conditions at the start of the full eclipse. So the Bailey's beads should  produce bigger (and more) diffraction spikes than seen in the 1.6 sec shot. Have ...

Getting the best photos of the upcoming total solar eclipse requires careful wide range exposure bracketing. Has anybody on this forum tried the moon to experiment with what settings and what ...