View allAll Photos Tagged F
This red disk-shaped phenomenon, is another member of the TLEs (Transient Luminous Events, happening in the middle and upper atmosphere, above thunderstorms) family and is called sprite halo. Under it, there is a group of, relatively small, sprites. Sprite halo is short-lived (some ms) and its color comes from the same physical process as in red sprites (de-excitation of 1st positive group of mol. nitrogen). Halos appear close to sprite tops (alt. ~80-85 km), over active thunderstorms, like sprites. Sprite halos are usually triggered by -CGs, in contrast to sprites which are related to +CGs (99%). There is also a faint stripe of high clouds in front of the halo. The yellow light is a distant ship.
The event happened over the thunderstorms south of Crete (on the east side of the Medicane on 28/10) as seen from S. Attica during the night of Oct. 28, 2021. Faint parent lightning flash at the bottom, behind a cloud layer, can be seen as well. I've used a Sigma 85 mm lens at f/1.4, for 1/4'' with 51.2k iso. More about the Greek Team chasing red sprites and TLEs in general: antisimvatikos.blogspot.com/2019/05/tles-greek-archive-of...
What is a red sprite? Info here: antisimvatikos.blogspot.com/2017/04/red-sprite.html
Photography and Licensing: doudoulakis.blogspot.com/
My books concerning natural phenomena / Τα βιβλία μου σχετικά με τα φυσικά φαινόμενα: www.facebook.com/TaFisikaFainomena/
Vulcanair SPA P.68TC Observer msn481.14/OTC
SARL Actima (2015/...)
Aéroport de Grenoble-Isère
23/02/2019
A historic streetcar on San Francisco’s F Market & Wharves rail line, as seen in the Fisherman’s Wharf area.
F-GHEB McDonnell Douglas MD-83 Air Liberte @ Dublin International Airport (scanned from 35mm print / Canon EOS 50E)
Air France Concordes were regular training visitors to Shannon. F-BVFB seen about to touch down on RWY 24, 29 May 1978.
F-GEXA - Boeing B-747-4B3 - UTA - Union De Transport Aerien
at Paris Charles-de-Gaulle Airport (CDG)
c/n 24154 - built in 1989 for UTA -
merged into Air France in 1992 -
retired 2011 - stored Kemble Coyswold Airport (EGBP) -
broken up 2012
scanned from Kodachrome-slide
Nikon F
Nikkor AF-S 300mm
Nikon AF-S Teleconverter TC-17EII 1.7
Inverti a ordem das coisas: A Nikon F, como padrão, vem com uma lente Nikon Nikkor S 50mm 1.4. Uma ótima 50mm, robusta e suave, que ajustou-se perfeitamente na digital Nikon D-90 para fazer essas fotos. Da mesma forma o modelo F recebeu facilmente a tele Nikon AF-S 300mm + o Nikon AF-S Teleconverter 1.7EII 1.7. Uma enorme flexibilidade entre lentes e corpos manufaturados em épocas tão distantes.
France, Armée de l'Air, Airbus A400M-180, cn 0073, civ reg F-RBAN, arriving to Getafe factory (LEGT).
A female red-veined darter, called the nomad on iNat, balancing on a dead plant stem. I've seen these dragonflies in Greece, Malta, and now in the Algarve. Here they showed up all along the eastern Ria Formosa. This one was one of many on the Praia de Faro.
Street portrait of elegant young lady,
sunny Cracow as usual;
____
Tech:
Leica M240
Leitz Summaron 35mm f/3.5 ltm
cropped to 6x6