Andy Resnick's latest activity

It is a fantastic lens for low-light level work, and vanishing depth-of-field images. Fully open, tho, the image is a little soft for...

That is seriously fast for a 105mm lens! Methinks it ought to be great for e.g. flower shots (providing lots of background blur) from a...

Thanks! The reflected distorted vertical lines originate from the reflected building's structure. The windows are not perfectly flat...

Weekend trip to Cincinnati, Ohio and while there, took a riverboat cruise. Straight jpgs (some cropped) from the camera, all shot using...

A cropped and downscaled image of the Veil nebula and NGC 6940, taken using a 105mm lens: Deets: Nikon D810 + 105/1.4 (shot at f/2)...

More fenitized gneiss samples: Fenitized gneiss. This sample was been classified as having strong fenitization-1 and moderate...

Hot off the press- the International Space Station, as seen from Cleveland, OH (300%): (Nikon D810 + nikkor 800/5.6 @ f/8, 1/2000s ISO...

Some fall flowers shot with 55mm MicroNikkor at 1:2 reproduction ratio: These were shot at f/11, but by opening the lens to f/3.5 I...

Consecutive nights of a crescent moon: The first night was a complete disaster- I am amazed I got anything at all. In the best...

Now the samples are more strongly fenitized and are also more photogenic: Fenitized gneiss. This sample was been classified as having...

I guess it's possible? It doesn't really change my conclusion that for me, using flats is a super-frustrating PITA that isn't worth my...

My test run using flats for 55mm imaging was a disaster. Regardless of the underlying reasons (possibly correctable reasons), my...

Flats... yeah, I've tried those. Unlike dark/bias/bad pixel frames, I spent at least a year (maybe even longer) trying to get flats to...

I'm not done trying to locate the blemish, hopefully off-axis illumination (an idea borrowed from 'ultramicroscopy') will reveal the...

We've had an unseasonal stretch of clear nights and good seeing conditions for the past week or so. Since there's currently nothing...