Why so cheap?

[woofie]

Hi, I'm fairly new to photography and was just browsing ebay while on lunch and ended up at one stage looking at lens.

But why/what makes these lens so cheap?
Lens 1

Lens 2

I have been looking at spending something around the $700-$88 range for 105mm macro lens and $1400 for a 500mm lens as I want to Macro shots and nature shots (birds etc).

As I said I'm fairly new to photography, like just over 4 weeks ago I got the camera So be gently when calling me a idiot please

Thanks in advance for the answers as well

[simonw]

I have had a few expensive hobbies in my time, and I am finding that Photography is the only one where cheap ebay buys are no good at all!

I can only speculate how poor the build quality and image quality would be, but you will see in the description the widest aperture you can reach is f8. If you don't know what that means, I'm sure it is explained in the new to photography forum but basically, it will be very hard to reach fast shutter speeds unless you are in very bright sunlight, meaning images you take will be blurry

But hey, if you have the money to burn... It could be some fun to play with, but you can buy much better accessories with the same money such as a flash, tripod or filters

[The_Scroop]

Build quality is the biggest difference, with this hobby the more you pay the better quality you get.

There is more glass built into the lens's, better quality glass, glass coatings to improve image quality and the list goes on. Not to mention, the cheaper lens's dont have autofocus or even the ability to change aperture (the case with the 500mm), you are stuck at f/8 it seems. With such a long length, having a lower aperture in order to allow maximum light into the lens is essential...unless you are in perfect bright conditions it would be very difficult to take a clear and focused shot.

Since I'm not sure how much you know about camera's and settings being new to the hobby, check out these links which should help you understand it a bit better :

Aperture info

Shutter Speed info

[kiwi]

Don't buy these lenses - they are SOOOOO bad. Might as well shoot through a coke bottle.

[ving]

probably inferior glass for starters. stacks of distortion and CA... thats a guess tho. someone here bought one and tried it but i cant remember who.

[kiwi]

Paul of course

[ameerat42]

Loox like some of the old TELEPHOTO (NOT zoom) lenses from way back. The cheapness was from a very few lens elements requiring minimal correction. But the IQ on film wasn't too bad. They just didn't go wider than about f/8. I had two of the same "brand", one 400mm, f/5.6, the other 500mm, f/8 . Between "brands" they looked almost identical. I gave one away as a gift. And I can't find the other. The price then was typically about $99. Am.

[ving]

paul of course :d

bazinga!

[Scotty72]

and, try sneaking that into the Australian Open.... Go on..!

[woofie]

Thanks for the replies...

I wasn't going to buy any of those lens I was more or less just wondering why so darn cheap...

I also like to buy local if I can for the fact of supporting local businesses and also warranty is easier most the time.

[kiwi]

and, try sneaking that into the Australian Open.... Go on..!

You couldnt even convince a security guy that it as pro gear though

[RaoulIsidro]

Yes they are dogs.
And they will mount on anything... camera bodies, I mean.
They are made of cheap plastic that warps under the Oz sun.
Have you ever had Tasco? You thought it was a great astronomical telescope only to be shocked to feel it was so light, the wind will blow it over from the tripod.
Same here.
The glass (is it? not sure) isn't even close to the cheapest kit lens of any major camera brand. Guaranteed disatisfaction, these gadgets.
Unless you are doing telephoto Lomo...

[rwg717]

Like the other comments, I wouldn't be touching these lenses, I've been looking at them for years now on Ebay but decided a long time ago that they wouldn't be worth the problems
Richard

[Scotty72]

For some reason, they seem to be getting great feedback.

[johnno02]

Hi All,
Must admit,Due to my love of really long distance Birding/wildlife shots, I also have been looking at the 500mm mirror lens from this seller.

Do agree,he has been getting good feedback from buyers...............Might just have to persevere with digiscoping,to get long telephoto Shots.

Regards.
John

[mickyj]

Are you guys taking about the ODS lenses ?

[Kym]

Are you guys taking about the ODS lenses ?

Yes, http://cgi.ebay.com.au/ODS-500mm-Zoo...item2c56392514
Plastic craptastic

[joele]

An article on mirror lenses..

http://www.photozone.de/mirror-lenses

[Bear Dale]

If this doesn't look like a plastic POS I don't know what does -

http://www.vsetkyvidea.sk/video/gqQi...Tele-Lens.html

[David]

If you want a birding lens go to the Nature > Birds forum in AP and see who posts there and ask them for advise about lens options. The birding togs in AP are very helpful and sincere.