July 4th in New York. Need tips on lenses, hotels and places to visit. Please share your photos.

Pietro Marchesi wrote:

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Here is the correct link: https://www.youtube.com/watch?v=xbWlacRVgWQ&list=PLtJIwPiOPe4VULfU7zp2xfj_c7nXp2Ath&index=40

I also found this LensTip review reporting coma in FF corners: http://www.lenstip.com/365.7-Lens_review-Canon_EF_35_mm_f_2_IS_USM_Coma__astigmatism_and_bokeh.html

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Best Regards
Pietro M
Stockholm

Yes, I do see coma being a bit of a concern, in these linked reviews. I have seen much worse coma in images captured with 35mm lenses, and have seen images indicating that the Sigma 35/1.4 Art is better, regarding coma. Notably, however, Lenstip does not show coma at infinity, but at their usual, much closer testing distance. (This is why landscape/night sky shooters will not depend upon Lenstip, alone, for test results.)

On the Nikon side, performance with coma, at night, was a factor in my adding a Nikkor 35mm f/1.4G, but not as significant as weather-sealing, and claimed sturdiness, to complement the sealing and sturdiness of my Nikon D3s. (Sigma Art-series lenses are not built with environmental sealing.)

When I bought my EF 35 IS, its presence on Canon's list of recommended lenses for the 5Ds/5Ds R was significant. Dustin Abbot's review was also important, and, notably, he compared the 35IS to the Sigma 35/1.4 Art, shooting the same subjects in the same conditions.

If you look at Dustin Abbot's blog, be sure to see his night sky images. I do not remember if he shot the night sky with the EF 35 IS, but he certainly did so with the Tamron 15-30mm f/2.8 VR, using a 6D. The big Tamron is a contender if I decide to eventually add a lens with good sagittal coma flare performance, for night landscapes, with night sky backgrounds, being a priority*. User reports have indicated the big, wide Tamron works well with the 5Ds R.

The big Tamron, of course, is a bit large for urban walking-about shooting, so off-topic here. I did, however, walk-about Washington, DC, last June, one evening, for several hours, with the significant mass of my Nikkor 14-24/2.8G, on a D700 camera, plus another D700 with a Nikkor 24-70/2.8G. (This big, wide Tamron is comparable, in mass and bulk, to the Nikkor 14-24/2.8G lens.) I certainly felt the weight, by the end of the evening.

*My budget may dictate, however, that I be happy with my Nikkor 14-24/2.8G and 35/1.4G, primarily on a D3s, for night sky images, for quite some time.