camera lens question

[minty]

wich  will give a bigger picture in wide angel 1.45 or .22? :-k

[martha focker]

1.45 :D

[minty]

ok thanks i know probly sounds dafft but i was unsure :oops:

[martha focker]

i didn't know until my dad told me, he used to repair cameras, and he said the smaller the number the wider the lens. :D

[Mudlark]

i didn't know until my dad told me, he used to repair cameras, and he said the smaller the number the wider the lens. :D

but .22 is smaller than 1.45 :?  :?  :?

[minty]

:?

[martha focker]

soz mate didn't se4e the point :lol:

[Mudlark]

Actually minty's lost me on the question


The number don't relate to camera mechanics


You have:

shutter speed - usually measured in 1/nths of a sec.

aperture size - measured in f 2.8 through to 22 (on most cameras)

Focal length - measured in mm (many cameras use zoom lens now which vary from 24mm (wide angle) to 200mm (telephoto))

and that's why 1.45 and .22 has got me :lol:  :lol:  :lol:  :lol:  :lol:

[martha focker]

i have asked him again, and i have listened properly, the numbers you have given are to let light in and (apperture or something) , the smaller the mm the wider the angle, as in 72mm is telephoto, and 28mm is wide angle. i think it means the size of the lens :?

im confused now.

[barny]

Me too ! none of my camera gear is talked about in that sense..... :?

.22 is calibre size to me ...  8)

[minty]

sorry guys me stupid i was looking at wide angle lens's one was 1.45 and the other was .22x i just wounderd with would give the most picture for the size?

[barny]

can you post a link to what your looking at ?

if someting optical is written as 22x, that effectively is 22x the power of the naked eye, e.g. a pair of binoculars marked as 10x40mm is ten times the power of the naked eye with a 40mm lens. A rifle scope marked as 3-9x50 will be three times the naked eye on its lowest setting zooming through to nines time power on its highest setting, looking through a 50mm lens.

A camera lens marked as 17-40mm is 17mm wide and zooms to a 40mm telephoto.

On compact cameras they can describe it as having a 9x zoom and then mention having a 40x digital zoom. The lower figure is generally speaking a proper optical lens being moved forwards and backwards to achieve the desired zoom. Digital zooms (the larger number) are complicated alogarithims that effectivley blow up the centre of the image, hence why they go blocky and pixelatted.  

hth

[minty]

i will look up the site tommorow and add it to the post
dont forget its        .22x

[minty]

http://www.amazon.com/Opteka-45x-Wide-Angle-S7000/dp/B000BY1QCG/ref=sr_1_218/103-8962976-0663868?ie=UTF8&s=photo&qid=1187538669&sr=1-218 and http://www.amazon.com/Definition-22x-Fisheye-Lens-Finepix/dp/B0007RVHY4/ref=pd_sim_p_5/103-8962976-0663868?ie=UTF8&qid=1187538669&sr=1-218
 i know thay are diffrent lens but which gives the grater view if it makes eny sence both lens come in the others eqiverlent :oops:

[Terranosaurus]

So you're talking about screw on adaptors, therefore the 0.22 is a wide angle adaptor and the 1.45 is a telephoto (zoom) adaptor.

[minty]

](*,)  ](*,)  ](*,)  yes thay screw in and yes for the perpus of the posting iv choosen x2 diffrent type lens but both type come in 1.45 or .22x and all i need to know is which one will give a bigger picture (wide or fish eyed) dossent matter i getting both is there more picture in 1.45 or .22x ???????????

[thermidorthelobster]

Like sptb said, the 0.22 is a wide angle adapter, hence it will get more in the picture.  The numbers you're quoting aren't normally used in photography, which is why it's a bit hard to help.

[DiscoCWK]

1.45 & 1.22 - I thought it was the difference between a Disco and a Defender transfer box  :D

[Guardian.]

just what i thought! :lol:

[minty]

thanks everyone for your help in this matter iz struggaling to explain me-self a bit as i dont like a lot of pep understand the  :(stoopid): ratio being used sorry if it seemed i was getting me tits off

[landroverkeith]

minty if youve got the kit with you m8 bring it to the billing bash my dad will be there at sum point he is camera mad if its got lots of twisty bits and little numbers on the side he is bound to know, we used to take the mick about him taking more time adjusting the camera that he missed the shot lol

[minty]

i wanted to find out first before i got them keith

[Terranosaurus]

](*,)  ](*,)  ](*,)  yes thay screw in and yes for the perpus of the posting iv choosen x2 diffrent type lens but both type come in 1.45 or .22x and all i need to know is which one will give a bigger picture (wide or fish eyed) dossent matter i getting both is there more picture in 1.45 or .22x ???????????

How many times the .22 is a wide angle adaptor the 1.45 is a tele (zoom) adaptor.

Therefore the 0.22 will give a "bigger picture"

[JumboBeef]

if someting optical is written as 22x, that effectively is 22x the power of the naked eye, e.g. a pair of binoculars marked as 10x40mm is ten times the power of the naked eye with a 40mm lens. A rifle scope marked as 3-9x50 will be three times the naked eye on its lowest setting zooming through to nines time power on its highest setting, looking through a 50mm lens.

Not right old chap, I'm afraid.

Your eye sees the world roughly the same as a 50mm lens.

The size of a lens (ie: 20mm) is the focal length ~ the distance from the lens to the film plate.  The shorter this distance, the wider the angle of view, hence a wide angle lens.

The 'zoom' of a lens is the max focal lenght of the lens, based on the widest angle.  So, to say '20x' zoom means nothing, you need to know 20x what, such as 20 x 20mm.  This means the widest is 20mm and the tighest (telephoto) is 400mm, and you can zoom from 20mm to 400mm.  

30 x 40mm is tighter (more of a zoom) than a 40 X 20mm, for example, even though the first is 'only' a 30x and the second a 40x.

I guessing the two lenses talked about, 1.45 and .22, are both old lenses and are in inches.

[Mudlark]

if someting optical is written as 22x, that effectively is 22x the power of the naked eye, e.g. a pair of binoculars marked as 10x40mm is ten times the power of the naked eye with a 40mm lens. A rifle scope marked as 3-9x50 will be three times the naked eye on its lowest setting zooming through to nines time power on its highest setting, looking through a 50mm lens.

Your eye sees the world roughly the same as a 50mm lens.

No not really it all depends on the size of the film or plate

You are right in as much as 35mm film cameras but if you use 120 film 65 x 65 mm then the standard lens is 80mm.

If you go the other way to digital cameras then you are looking around 38mm for a standard lens.

Now minty's explained that they are adapters it makes sense.
Adapters do not have a focal length as a lens does they adapt the focal length of the lens that they are put on by a set multiple - hence the x on the end of the size

So using a 50mm lens, putting a .22x adapter on make the lens a 11mm lens ((fish eye) wide angle), putting a 1.45x adapter on makes the lens a 72.5mm (short telephoto)

[JumboBeef]

Yes, true.  I was talking about SLR lenses.

[martha focker]

slr cams are just so good :D

[thermidorthelobster]

Yes, true.  I was talking about SLR lenses.

35mm, full frame sensor digital, partial frame sensor digital, or medium format?  :twisted:

[barny]

I'll get me coat ... :oops:

[Mudlark]

Yes, true.  I was talking about SLR lenses.

35mm, full frame sensor digital, partial frame sensor digital, or medium format?  :twisted:

How about large format


Poloroid 15 x 12 ?? (thats inches :lol:  :lol:  :lol: )