Question about Quantaray 50mm f/2.8 AF Tech-10 for Canon EOS

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Quantaray tech-10 24mm f2.8

I just bought this lense at ritz; been reading about the quantaray lenses and figured out that they are made for ritz.
the lense I bought:
the tag on the box said tech-10 24mm f2.8
the box said quantaray version 5 24mm 1:28 autofocus
I paid ... $81.21
the question: will this work with my new sony a-100??

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I work for Ritz and just fixed this issue for a customer. The lens may not be fully seated into the mount and the contacts are not in alignment so there is no communication between the camera and the lens. Try turning the lens a bit more... gently... towards the locking position, you will here a click from the release button coming up all the way and the lens should start to work just fine. 

Posted on Oct 18, 2008

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Yes, I have this lens and it works just fine with Sony alpha A100

Posted on Aug 18, 2008

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Why does the camera say error 99 when i put lense on? camera works fine with other lense. we have a cannon 30d.


The Quantaray lens is not compatible electronic wise with your Canon. It is indeed made to fit Canon, but the lens is a bit outdated compared to the relatively new Canon.

Quantaray lenses were sold by Ritz Camera (also Wolf Camera). You would want to take it in to the and see if it can be sent out and re-chiped, which will allow it to work with the newer Canon cameras.

Not all lenses can be re-chiped. You may just have to purchase a new lens.

Sep 09, 2010 | Quantaray Tech-10 70-300mm f/4.0-5.6 Lens...

1 Answer

Where do I send my quantaray 70-300mm for repair


You may have two options.
First, contact the place where you bought the lens from. Quantaray is mainly a Ritz Cameras brand.
Secondly, you can use third party repair shops.
I purchase some of my lenses from KEH. [keh.com]. They have a repair shop for cameras and lenses.
Attached is their FAQ site. http://www.keh.com/repair-center.aspx

Hope this helps.
Andrew

Apr 01, 2010 | Quantaray 100-300mm F4.5-6.7 Zoom Lens for...

1 Answer

The Quantaray 70-300mm lens


Only if you get the version with the built-in autofocus motor. The D3000 lacks a mechanical AF coupling so AF lenses which need to be driven by a motor in the camera body will require manual focussing.

Either way, you're far better manually focussing the Quantaray/Tamron 70-300mm: the AF performance is very slow, very noisy and hunts around a lot to achieve focus.

Although the Quantaray and Tamron versions are identical lenses, if you have to buy this low-quality budget model then go for the Tamron: it's absolutely no better lens quality (and usually the same price), but the manufacturer's warranty from Tamron is much better than Ritz and is internationally valid. If you resell the lens then the Tamron will have some value (not much though) and the Quantaray will be near worthless as it's not so widely known, and has a poor reputation amongst those familiar with the brand.

"Cheap" isn't always the same as "good value"...

Mar 06, 2010 | Quantaray Tech-10 70-300mm f/4.0-5.6 Lens...

2 Answers

Quantaray QDC-900WA


Quantaray appears to not be a company at all It is affiliated with Ritz Camera and neither Quantaray nor Ritz actually manufacture anything.

The Quantaray SLR lenses are made in the Sigma factory. But many feel that they are not equal to the Sigma branded lenses.

I haven't found the maker of the flash units, yet. I should learn more this evening. An interesting mystery.

In here, you can find the User Guide for Quantaray 900 for Nikon TTL Flash

Good luck.

Jun 16, 2009 | Quantaray QDC-900WA for Nikon TTL Flash

1 Answer

Want specifications for titan ii ii-950


Call Ritz Camera at 877-999-RITZ (7489). They "might" be able to assist you. Ritz's generic lenses are Quantaray made by Sigma. I don't know who makes the tripod. They are able to provide documentation for you, but I don't know if they will. Ritz has an online help form that you can fill out on their web site also

The little 'hooks' on the bottom of the legs 'snap' into each other to secure the legs together. Each leg has a 'hook snap' which clicks into place with the other legs. It is merely a way to secure the legs from flopping open. I bought the same tripod, a good solid piece of equipment. No instructions but its easy enough to figure out. Hope this helps.

Feb 26, 2009 | Quantaray QSX-DigiPro 8500 Tripod

1 Answer

My lenses not working with my new Canon Rebel


Check with your local Ritz Camera store, or find Ritz online. In the past they've been updating the chip in the lens to work with digital cameras at no, or small charge ( Quantaray is a Ritz house brand ).

Dec 31, 2008 | Quantaray Tech-10 70-300mm f/4.0-5.6 Lens...

1 Answer

I have a Quantaray 19-35mm lense and there are three screws that hold the assembly that attaches the lense to the camera. 1 of those 3 screws has come lose and fell out. Any idea where I can get a new...


Quantaray lenses are private label lenses made by Sigma for Ritz Camera. For service contact Ritz Cameras or your nearest large camera store. Most large camera stores have a repair department that should be able to supply the screw for your lens.

Dec 18, 2008 | Quantaray 19-35mm F3.5-4.5 for Canon

1 Answer

Website


Quantaray is a private label lens sold thru Ritz Cameras. Contact Ritz for service on this lens.

Oct 28, 2008 | Quantaray AF 70-300mm f/4.0-5.6 High Speed...

1 Answer

Quantaray 28-200 1:3.5-5.6


You can get parts from Ritz Camera - send specifics to email CSmith@RITZCAMERA.COM

Jul 06, 2008 | Quantaray 50mm f/2.8 AF Tech-10 for Canon...

1 Answer

It doesn't work with my digital camara


Some of the early Quantaray lenses, designed for the EOS film cameras, need to be upgraded by Quantaray. Contact your local Ritz Camera, or go to their support page online to find out if an upgrade chip is available for your particular lens, so it can be used with a digital EOS

Nov 07, 2007 | Quantaray 50mm f/2.8 AF Tech-10 for Canon...

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