Diaphragm moon f 90 and f 22

JuzaPhoto uses technical cookies and third-part cookies to provide the service and to make possible login, choice of background color and other settings (click here for more info).

By continuing to browse the site you confirm that you have read your options regarding cookies and that you have read and accepted the Terms of service and Privacy.

OK, I confirm

You can change in every moment your cookies preferences from the page Cookie Preferences, that can be reached from every page of the website with the link that you find at the bottom of the page; you can also set your preferences directly here

Accept Cookies

Customize

Refuse Cookies

Galleries
Astrophotography

1.5 MEGAPIXEL

Resize to fit window

LABS View gallery (46 photos)

Diaphragm moon f 90 and f 22 sent on August 17, 2019 (22:17) by Jacopo Pasqualotto. 8 comments, 729 views.

, ISO 100, tripod.

Ecco, per puro esperimento, mio divertimento e come curiosità scientifica, il nostro satellite fotografato ad un diaframma altissimo, f 90 sx, e poi a f 32 dx, dove la lente rende meglio. Per scattare queste immagini, poi montate assieme per comodità, ho usato, in ordine dal paraluce alla reflex: paraluce --> polarizzatore lineare Hoya --> Nikkor 75-300 af-d --> Duplicatore Komura --> D200 Totale: af-d a 300mm + Komura x2 + aps-c = 900mm Potete notare a f 90 il drastico calo di nitidezza, ma come contraltare, è perfettamente a fuoco anche la superficie del sensore, dove spunta un pelucco in basso ed altre schifezze puntiformi sparse qua e là. Il pelucco è blandamente visibile nello scatto successivo, più spostato in alto. L' f 90 è stato ottenuto a 300 mm dove il Nikkor ha un diaframma che chiude a f 45, raddoppiato dal duplicatore 2x. L' f 32 è in realtà f 11 di diaframma da ghiera, compensato internamente a f 16 dal Nikkor e moltiplicato a f 32 dal duplicatore.

View High Resolution 1.5 MP

2 persons like it: Barzagli, Dctny

What do you think about this photo?

Do you have questions or curiosities about this image? Do you want to ask something to the author, give him suggestions for improvement, or congratulate for a photo that you really like?

You can do it by joining JuzaPhoto, it is easy and free!

There is more: by registering you can create your personal page, publish photos, receive comments and you can use all the features of JuzaPhoto. With more than 242000 members, there is space for everyone, from the beginner to the professional.

Canopo70

sent on August 17, 2019 (22:33) | This comment has been automatically translated (show/hide original)

I just didn't understand what you wanted to prove... you didn't write the laying times though

Jacopo Pasqualotto

sent on August 17, 2019 (22:37) | This comment has been automatically translated (show/hide original)

Hahaha! .... Absolutely nothing :-D
It's just to show a picture of the moon at f 90, that NO one has ever made it, and how it makes a lighter of old men....
The timing of the laying I do not remember them, but in the order of a few fractions of a second. I took the light in spot mode.
Wait, here I recovered them: f 90 a second and a half, f 32 a quarter of a second.

Canopo70

sent on August 17, 2019 (23:02) | This comment has been automatically translated (show/hide original)

That's why it's kneaded... :-) Try to raise iso and use good times to check... springs the display meter and sets at least from 1/125 and up... and adjusted with iso... 1/4 of a second at 900mm I miss the 10micron succeeds... calculating
the vibrations of the mirror

Jacopo Pasqualotto

sent on August 17, 2019 (23:15) | This comment has been automatically translated (show/hide original)

Porca! So fast ??? It's a good thing, but with the D200, going beyond 400 iso means a noisy suicide. :-D
Thank you for tips, then I'll tell you. (ah, I took the shots you saw with wire control and mirror up).

Canopo70

sent on August 17, 2019 (23:35) | This comment has been automatically translated (show/hide original)

Ok but the focus is too long for those shooting times. earth and moon move

Jacopo Pasqualotto

sent on August 17, 2019 (23:56) | This comment has been automatically translated (show/hide original)

Tried before clouds arrived: the maximum I can aspire to with the D200 not to see darkness or colored confetti is 1/40, f 8 ( f 16 with the duplicator ), 800 iso.
Going under f8 with the nikkor means seeing jam, and if you exceed iso 800 with the D200 comes the carnival in the photo.
I reached the limit of my system, which, beyond the satellite image, was the one that interested me the most.
Thanks to the advice: if one day I'm going to buy a d7200 or a d500 or a 600 f5.6, he's going to give us a good time.
Hello.

Canopo70

sent on August 18, 2019 (0:14) | This comment has been automatically translated (show/hide original)

The D700, if I remember, has the crop in the room.
You can push up to 1600 iso holding a good detail, you can try

Jacopo Pasqualotto

sent on August 18, 2019 (0:24) | This comment has been automatically translated (show/hide original)

Um... interesting. It's 5 mpx but I could try. Thank you x the starboard, I forgot.

Publish your advertisement on JuzaPhoto (info)

Some comments may have been automatically translated with Microsoft Translator.