First Night Shot attempt

Tyger · 31st of August 2005 (Wed)

I haven't tried to do any of these shots so i grabbed my tripod and took one off my balcony and zoomed in on the highway. not too bad for a first attempt, kinda looks like i've got one of those star filters on

Tyger · 1st of September 2005 (Thu)

I'm curious to know if anyone can explain why i got this result. Is it because of the slow shutter speed?

here are my settings,

Tripod: Used
Camera Model Canon EOS DIGITAL REBEL XT
Shooting Mode Manual Exposure
Tv(Shutter Speed) 13
Av(Aperture Value) 22.0
Metering Mode Center-Weighted Average Metering
ISO Speed 800
Lens Sigma APO Macro DG 70.0 - 300.0 mm
Focal Length 300.0 mm
White Balance Mode Tungsten
AF Mode Manual focusing

ddelallata · 1st of September 2005 (Thu)

I got the same effect with my 17-40L lens not too long ago.

I'd also like to know. It doesn't bother me though.

ricohcam01 · 1st of September 2005 (Thu)

Can you tell me what your apature was set at here?
Actually can you give all the settings you can?
I want to make I am right before I tell you. LOL

ricohcam01 · 1st of September 2005 (Thu)

Here is one of my first night or dusk shots.
You can tell by the sky that I used a low fstop open apature to let in the light. I know its a little grainny
because I used an old roll of 120 medium format film that had been sitting in the camera for sometime. 120 film is better used just refridgerated. This is a scan from the Neg.

I think you used a high fstop or closed apature and that is why you have the star look around the lights but I could be wrong.

Tyger · 1st of September 2005 (Thu)

uummmm, it's listed on my second post

JayKitty · 1st of September 2005 (Thu)

the longer shutter speeds allow the rays of light to be captured. correct me if im wrong.

here's one that i got

f/9
8 seconds
ISO 400

Tyger · 1st of September 2005 (Thu)

That's awesome Jay! even the moon looks cool that way. I guess it's a work around instead of using a star filter

It really adds a different characteristic doesn't it.

Doutchie · 2nd of September 2005 (Fri)

I like that kind of shot... I got the same effect with long exposure, but, I seem to have less points to the star effect. Any reason why?

f/18
5 seconds
ISO 1600

Bag · 2nd of September 2005 (Fri)

I think the reason why some night pictures have more points to the star is a result of the quality of the lens. lower end lenses have 5 "blades" while higher end lenses have more than 5. I may be wrong though.

ricohcam01 · 3rd of September 2005 (Sat)

Did some research.

Lens Flare:

Any image with an intense source of light is likely to "flare" The effect is more pronounced with older lenses or cheap cameras. The two controls are the size and shape of the diaphrame (aperature) and the degree of exposure given. The larger the diaphrame (aperature) say f2.8 the more circle-shaped the light spread will be. Smaller the aperatures say f22 usually create a multi-pointed star shape.

So we are all right, a little speed and a little aperature.

Source of info: The photographer's hand book 3rd edition by John Hedgecoe.

Hope this helps

Doutchie · 3rd of September 2005 (Sat)

Thanks Ricoh. Very informative. I will have to experment.

MattyB · 3rd of September 2005 (Sat)

http://photography-on-the.net/forum/...ad.php?t=95806
'flyingpete's post should clear things up

OiPaz · 3rd of September 2005 (Sat)

Quote:

Originally Posted by JayKitty

the longer shutter speeds allow the rays of light to be captured. correct me if im wrong.

As far as I know the "star effect" is due to the combined action of diffraction (at high f/ numbers) and diaphragm blades. BTW, it seems that your lens has 9 blades, hasn't it?

davepgh1 · 4th of September 2005 (Sun)

Quote:

Originally Posted by Bag

I think the reason why some night pictures have more points to the star is a result of the quality of the lens. lower end lenses have 5 "blades" while higher end lenses have more than 5. I may be wrong though.

I was counting the points when I read this, I think he may have something; cropped down lens and time for light to leak into the pictures.

I posted this at the time I read it, I think everyone has logical points to make on this.

31st of August 2005 (Wed)	#1
Tyger Senior Member Join Date: Jul 2005 Location: toronto, canada Posts: 1,295	First Night Shot attempt I haven't tried to do any of these shots so i grabbed my tripod and took one off my balcony and zoomed in on the highway. not too bad for a first attempt, kinda looks like i've got one of those star filters on __________________ Gear List You create your reality. Last edited by Tyger : 31st of August 2005 (Wed) at 21:31.

1st of September 2005 (Thu)	#2
Tyger Senior Member Join Date: Jul 2005 Location: toronto, canada Posts: 1,295	Re: First Night Shot attempt I'm curious to know if anyone can explain why i got this result. Is it because of the slow shutter speed? here are my settings, Tripod: Used Camera Model Canon EOS DIGITAL REBEL XT Shooting Mode Manual Exposure Tv(Shutter Speed) 13 Av(Aperture Value) 22.0 Metering Mode Center-Weighted Average Metering ISO Speed 800 Lens Sigma APO Macro DG 70.0 - 300.0 mm Focal Length 300.0 mm White Balance Mode Tungsten AF Mode Manual focusing __________________ Gear List You create your reality.

1st of September 2005 (Thu)	#3
ddelallata Senior Member Join Date: May 2005 Location: Brownsville, Tx USA Posts: 1,191	Re: First Night Shot attempt I got the same effect with my 17-40L lens not too long ago. I'd also like to know. It doesn't bother me though. __________________ Dr. David de la Llata _____________ Canon 20D BG-E2 Battery Grip Canon SpeedLite 430 EX Canon EF 1.4X II Canon EF-S 10-22mm F/3.5-4.5 USM Canon EF 50mm F/1.4 USM Canon EF 100mm F/2.8 MACRO USM Canon EF 24-70mm F/2.8 L USM Canon EF 70-200mm F/2.8 L USM Olympus C-2020 (for infrared work)

1st of September 2005 (Thu)	#4
ricohcam01 Member Join Date: Aug 2005 Posts: 417	Re: First Night Shot attempt Can you tell me what your apature was set at here? Actually can you give all the settings you can? I want to make I am right before I tell you. LOL

1st of September 2005 (Thu)	#6
Tyger Senior Member Join Date: Jul 2005 Location: toronto, canada Posts: 1,295	Re: First Night Shot attempt uummmm, it's listed on my second post __________________ Gear List You create your reality.

1st of September 2005 (Thu)	#7
JayKitty Member Join Date: Jul 2005 Location: Orlando, FL Posts: 369 IMAGE EDITING OK	Re: First Night Shot attempt the longer shutter speeds allow the rays of light to be captured. correct me if im wrong. here's one that i got f/9 8 seconds ISO 400 __________________ My Stuff: Canon 20D+BG-E2 / Canon 70-200 2.8L USM / Sigma 24-70 f2.8 EX DG Macro / Canon 50mm 1.8 / Sekonic L-358 Light Meter JayKittle.com

1st of September 2005 (Thu)	#8
Tyger Senior Member Join Date: Jul 2005 Location: toronto, canada Posts: 1,295	Re: First Night Shot attempt That's awesome Jay! even the moon looks cool that way. I guess it's a work around instead of using a star filter It really adds a different characteristic doesn't it. __________________ Gear List You create your reality.

2nd of September 2005 (Fri)	#10
Bag Junior Member Join Date: Jun 2005 Posts: 5	Re: First Night Shot attempt I think the reason why some night pictures have more points to the star is a result of the quality of the lens. lower end lenses have 5 "blades" while higher end lenses have more than 5. I may be wrong though.

3rd of September 2005 (Sat)	#11
ricohcam01 Member Join Date: Aug 2005 Posts: 417	Re: First Night Shot attempt Did some research. Lens Flare: Any image with an intense source of light is likely to "flare" The effect is more pronounced with older lenses or cheap cameras. The two controls are the size and shape of the diaphrame (aperature) and the degree of exposure given. The larger the diaphrame (aperature) say f2.8 the more circle-shaped the light spread will be. Smaller the aperatures say f22 usually create a multi-pointed star shape. So we are all right, a little speed and a little aperature. Source of info: The photographer's hand book 3rd edition by John Hedgecoe. Hope this helps

3rd of September 2005 (Sat)	#12
Doutchie Member Join Date: Jul 2005 Location: Timmins Ontario Canada Posts: 388 IMAGE EDITING OK	Re: First Night Shot attempt Thanks Ricoh. Very informative. I will have to experment. __________________ Joël Ducharme EOS 50D, Canon 18-200mm, Sigma APO 70-200 f2.8, 50mm 1,8, Manfrotto 190XProB w/804RC2 www.joelducharme.ca Flickr Facebook

3rd of September 2005 (Sat)	#13
MattyB Senior Member Join Date: May 2005 Location: Melbourne, Australia Posts: 1,661	Re: First Night Shot attempt http://photography-on-the.net/forum/...ad.php?t=95806 'flyingpete's post should clear things up __________________ Matt Bennell Camera: Canon EOS 300D DSLR Black Extras: 18-55mm, 50mm 1.8, Tripod, Imagination Field: You name it, I've shot it.. Or about to shoot it today Recently Updated Folio/Gallery -> http://mbp.fotopic.net/

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