they still offer a different type of lenses.. that's their specialties..
like my sigma.. i think the AF is fast even for telephoto lens..

guys 1 other thing the autofocus still function but at certain time the lens making loud noise.is it the gear problem?nothing to do with the body rite?

if still have warranty, send it, bro, if not, u need to stick 1 of layer masking tape at the hotshoe, stick it at the both of this side

this happens on A200-A300? aiyo must check mine..
but no external flash

yea i know its available...but somehow or what they still need to pay a fee/acquire a licence to obtain the mount information right?

dun think canon/sony would just give their mounts information to 3rd parties for freet?so if they don't give out the information, the mounts are most likely to be reverse engineered?

why no logic?3rd party lenses are eating a share into their profit margin lea..wouldn't these companies be a lot happier if 3rd party lenses don't exist? then everybody have no choice but the buy from the respective brands..

oh maybe i am too skeptical?

@8tvt

i think u misunderstood what i am saying. nvm la. hehe.

when the time is come, sumtime it happens to all model..

Haven't try on other body as I'm the only one use Alpha is my group

If contact properly, still can fire as normal.
If no contact, LCD will show flash OFF simbol.

Thanks for the masking tape technology, will try it after work.

No idea, but my body is A300

so it's not right after open the box..
but caused by tear n wear or have possibility manufacturing defect?

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Added on June 24, 2010, 11:11 amzstan
i would really think if got licensing involved on the mount is easier than reverse engineering permission..
sure they make their own..

if they not exist.. market share also no evolve much..
not only the lenses but also no one upgrading the body..

This post has been edited by 8tvt: Jun 24 2010, 11:11 AM

zstan : I'm sure there's a fee or license or whatever and I'm sure that it's not too prohibitive.

3rd party manufacturers play an important role in the DSLR field. They provide users with cheaper alternatives to premium lenses offered by the original manufacturers. This in turn will help the original manufacturers to sell more bodies. It's a win-win situation. Common examples are the cheaper alternatives for the 70-200mm f2.8 lenses.

3rd parties also fill in gaps in the line ups where the original manufacturers have little interest in pursuing. Like the 30mm lenses for APS-C sensors or the 50-150mm range for APS-C sensors. Take a look at the Tamron 17-50mm f2.8 lens. It fills a niche for budget users who cannot afford to or won't buy the more expensive 16-35mm FF range from the original manufacturers. Without 3rd party lens maufacturers, the original manufacturers will not have such a big market share for bodies.

ur welcome bro, sumtime u need to adjust abit that masking tape (we can called it fine tuning lol)

i think its tear n wear,

zstan: No issue what. It's very rare to find those Sigmas with old chips (the 400mm F5.6 non-APO is one).

3rd party lenses are reverse engineered from OEM lenses.

shootkk: They ARE reverse engineered - that's why Sigma took so long to get HSM on Sony/Pentax mount.

Also, Sigma lenses do not ask for new Lens IDs from Sony - they take existing Lens IDs. For example my Sigma 17-35mm F2.8-4 EX is reported as a Minolta 24mm F2.8. This causes a problem if the camera has in-built backfocus/frontfocus correction for the 24mm F2.8. I know the A900 onwards introduced correction for the backfocusing 50mm F1.4 - if any Sigma/Tamron/Tokina uses the same Lens ID, it may be affected by the correction table stored in the firmware.

boyzone: Your camera's hotshoe has dirt on it; the looseness is not the problem. Refer here:
http://www.glaringnotebook.com/Default.asp?id=1196

Hey dudes, I have bad news. I might have to sell off all my equipments and get a compact camera or a digital camera instead.

aiyo not another one. why bro?

poisoned with bridge camera?

Cause I cant find the time to play with my DSLR d.

Not really. I just plan to change to a more compact n smaller body.

sell me ur 1.4 for cheap la. AHAHAH.

We'll see about that. If I plan to sell then I will inform everyone.

albnok : Hmm... so they ARE reverse engineered. I stand corrected.

wonka : Just pack your camera with you wherever you go and you can take pics lor... Anyway, can you really go back to a compact cam? I find that I can no longer tolerate the shortcomings of compact cams, especially the dismal low light performance...

not to mention slow focusing, missing out shots, harsh flash, white balance headaches, soft images.. U name it. then of coz, the size is pocketable..

@albert
thanks for the explanation! just a bit tad worried that 3rd party lens cannot be used with newer bodies if Sony decides to upgrade the firmware.

@wonka
get NEX-5 la! is that compact enough?

the IQ of my kodak(RM400) compact is terrible as well even in broad day light. if u really need to switch to compact, i'd suggest you for high end compacts, eg.canon G12..gf1 etc....

but its really unnecessary to sell ur gears la...who knows u might need one day again?

This post has been edited by zstan: Jun 24 2010, 12:48 PM