7250i is it true [Archive] - Nokia Flash Reverse Electronic Engineering

bugger

10-09-2003, 11:30 AM

i got a 7250, hoping sometimes in the near future that i'd be able to upgrade the firmware to 7250i...

well anyway.. i heard from a dealer that 7250i uses infra red on it's camera, i'm wondering if this is true?? or is it simply the same camera with updated image editing software??

tom_ch66

10-09-2003, 05:49 PM

Yes its true that the cam uses infra red i got a 7250i and its realy good u cant upgrade the software i think but about the camera i dont know. Maybe u can change it but the software upgrade i think u can get from nokia manifacture

good luck dude

bugger

10-09-2003, 05:54 PM

in some other thread, someone said that nokia will be willing to upgrade the software for 7250 to 7250i at a reasonable price... no good to me if the camera is different

tom_ch66

10-09-2003, 09:00 PM

selecta_man_uk

10-09-2003, 10:51 PM

it depends the picture mitght get better im not sure what camera the 7250 got becouse i got a 7250i but what i heard the picture will get alittle better then the 7250 original firmware. i think u should try it besides u will also get the wap updated i think and some other stuff

cya peace man
What exactly is the difference, hmmmm, i heard that 7250i has zoom on the cam?!?!? is that true.??.... if so, can that be upgraded...... i dont see how that could be sofware related!!!!

The-CROW

10-09-2003, 10:56 PM

What do you mean the camera uses the infrared? Can someone please explain to me?
As for the differences between 7250 and 7250i, they are as follows:
1-7250i has a nightmode option camera plus a photo editor and zoom.
2-7250i can assign to up to 100 contacts in the phonebook any picture
3-7250i has Xhtml in its browser for better surfing
4-7250i has sound support for MMS messaging.
Cheerz.

tom_ch66

11-09-2003, 12:14 AM

first of all to anser ur questions no the phone dont have a zoom on the camera it got a zoom when the picture is saved but not a live zoom

and secound i tryed the camra with a infrared light and it picks the light up fine so the camra r useing infrared

tom_ch66

11-09-2003, 12:22 AM

I forgot to explain something in the last message....

the cam in the 7250i infrared as i said why is it infrared i hear you cry? its becouse of the small size of camra. I think its like a webcam actuly a normal cam needs linses and shit. The thing with infrared cams are that they dont need any linses and shit. To work and infrared cams doesent way as mutch as a normal cam.

Atlest that is what i think i hope its correct i havent looked in to it that close yet so look that up and tell me if its right

arc

11-09-2003, 05:33 AM

an infrared cam will only pick up colours in shades of one colour (black/grey/green) when used with an IR source. The 7250i doesnt do pictures like that, it has no IR light source. However, it can *see* IR light (try it with a remote control).

This basically means if u can project IR light from another source, the camera will pick up the reflections and should be able to take a picture when there is zero visible light.

All that the 'night mode' on the camera of the 7250i is is a light amplification mode, it seems to have the ability for true night vision but lacks some bits

bugger

11-09-2003, 11:34 AM

The-CROW

11-09-2003, 11:56 AM

I have a 7250i, tell me exactly what do you want me to take a picture of, and i'll do it tonight and post the pics....

the easiest way to settle this arguement is for someone with 7250i to take a picture at night... infra red cameras does not pick up visible light, rather it picks up heat.. so if u see colours, the right colours.. then obviously it's not a true infra red camera and most likely to be software related

anyway.. can someone post a pic.. at night from the 7250i.. i'm curious

bugger

11-09-2003, 01:10 PM

I have a 7250i, tell me exactly what do you want me to take a picture of, and i'll do it tonight and post the pics....

well.. picture of anything really.. how about a picture of your hand in a wardrobe (that should be dark enough)...

i have a feeling it's a different camera.. new cif camera but not true night vision or infra-red

thanks bud

arc

11-09-2003, 04:05 PM

the easiest way to settle this arguement is for someone with 7250i to take a picture at night... infra red cameras does not pick up visible light, rather it picks up heat.. so if u see colours, the right colours.. then obviously it's not a true infra red camera and most likely to be software related

anyway.. can someone post a pic.. at night from the 7250i.. i'm curious

Read my post. Since when did an IR camera pickup heat. You are thinking of thermal imaging. The 7250i does not have a thermal imaging camera. I'm not going to bother takin a picture in zero visible light because it will be black..and just black.

The 7250i camera can pickup IR light, but cannot emit it in any useable intensity.

If you were to place the 7250i in a pitch black room and take a picture it will be black. If you were to add a powerful IR light source.. like this one http://www.maplin.co.uk/products/module.asp?CartID=030911140200988&moduleno=33295&Products=1 you will see detail from the room to a range of around 10m and all in a kinda greeny grey scale.

It will not take full colour pictures in zero visible light, it will not pick up heat, it will not take any kind of useable picture in zero visible light without an IR light source.

maddog

11-09-2003, 04:13 PM

I just think that the 'equivelent of the shutter' takes longer to close so it can draw in as much light as possible. I have noticed in the night mode that if you take a picture you have to be very still for a few seconds otherwise it 'blurrs' big time. I still use the normal mode, find it just as good!

bugger

11-09-2003, 04:57 PM

The 7250i doesnt do pictures like that, it has no IR light source. However, it can *see* IR light (try it with a remote control).

don't mean to be rude... but how do u think thermal imaging works?? it picks up heat emission aka "infra red light".. and anything above -273C is a source of IR light

but i tend to agree with what maddog says.. it got something to do with the shutter speed.. it seem to be the most logical answer

a lot of ppl get mixed up between infra red and night vision.. think that the dealer must have had the 2 mixed up

bugger

11-09-2003, 05:28 PM

ok.. i stand corrected.. the term infra red imaging in photography terms is for the shorter wavelength of the IR spectrum plus the visible light spectrum... whereas true infra-red is thermal imaging (only infra red spectrum)

redrocket93

12-09-2003, 01:22 PM

for everyones information, i have a 7250 and when it can see infra red light. if you activate the camera and then put the tv remote in front of it and push a button you will see a light from it.

bugger

14-09-2003, 07:54 AM

for everyones information, i have a 7250 and when it can see infra red light. if you activate the camera and then put the tv remote in front of it and push a button you will see a light from it.

yep you're absolutely right.. same with mine