India Point Park

India Point Park
by matt-ball                

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

The tag has no usage guidance.

learn more… | top users | synonyms

8
votes
1answer
141 views

What causes these bands in this macro photograph of a LED?

I took these photos of two LEDs: from my Nexus 5 phone. The distance between the lens and the LEDs was lens than 2 cms. The bands only appear when going up this close. Are these a ...
0
votes
0answers
24 views

Is there a way to use my phone's dual LED flash with my NEX?

My phone has a dual LED flash that's supposed to match the color temperature of the scene, preventing color balance problems like this. I do a lot of night photography, and I use my NEX-5R. The NEX ...
1
vote
1answer
96 views

Can I leave a smartphone's LED flash on continuously before taking a photo?

When I take photos in the dark using my phone, I sometimes use the flash. However, the flash fires only at the instant of taking the photo, as with a traditional camera. This means that the preview is ...
0
votes
1answer
111 views

Where can I find light bars?

I am looking for light bars/tubes like the ones you can see here and here. I've googled it but have exclusively found LED lights but that's not what I want. Any ideas where I can find it ? Am not ...
0
votes
3answers
805 views

How can I amplify the light from a tiny white LED through a keyhole?

I am working currently on an art project. My target: I apply around 1000 lumen of light through a key hole of a door lock. The light is supposed to go through the key hole and the outcome of the ...
2
votes
2answers
142 views

How can I match adjustable-color artificial light temperature to ambient light?

I got some bi-color LEDs that allow me to control the temperature of the light they produce in the range 3200K-5600K. I will be using them in non-studio settings to complement available light. What ...
6
votes
3answers
2k views

How do I get accurate color when taking a photo of an LED?

When I'm taking a photo of a LED diode (turned on), it appears to be brighter than it should be and its color is false. For example, red diode looks pink. I have tried changing white balance or use ...
2
votes
5answers
368 views

Can I use my room's wall as a diffuser for a spot light?

Would like to record my face with a webcam on my desktop. I have a white wall with some light blue texture in front of my desk. Can I use that as a diffuser? I dont want to invest in a soft box or ...
2
votes
0answers
245 views

Filtering out RED light from a white LED source [closed]

We use red light for high speed videography. currently we use a Tungsten light source with a Red filter. Unfortunately, the Tungsten light source creates too much heat for our laboratory use. We ...
1
vote
0answers
47 views

Brightness of LED panel [duplicate]

If choosing a xenon flash, GN is a common reference. Come to led panel, there is lm/m and lux. This is a spec. of led panel: LM: 520/m LUX: 1m: 650, 2m:170, 3m:80 Whats EV equivalent of above ...
1
vote
4answers
561 views

Will LEDs work with a point & shoot camera for light booth digital photography?

I am planning on using multiple strips of LEDs to light up a 2 ft x 2 ft x 2 ft light booth for taking pictures of small items. LED output is Cool White 6500k. Digital camera is low cost 5 megapixel ...
16
votes
4answers
32k views

What is the purpose of a dual LED flash?

I see that some smartphones now have dual LED flash. What exactly is the purpose of a dual LED flash? Anything to do with brightness? What can a dual do that a single flash cannot? Would a triple LED ...