DSLR Guide: Know about Lens part:6 First vs Third Party Lenses Which One To Choose?
First and Third Party Defined
1. First party lenses are NOT interchangeable with cameras from different manufacturers: a Canon lens will not attach to a Pentax camera and vice versa.
2. The lenses are interchangeable with different camera models from the same manufacturer: a single Canon lens will work with every Canon digital SLR camera.
The third party lenses, there are really only three major players: Sigma, Tamron and Tokina.
The same third party lens can be attached to cameras from different manufacturers, so long as the lens mount is correct.example, the Tamron 28-70mm f/2.8 zoom comes with a Canon mount (to attach to all Canon digital SLRs)
Once you’ve bought a lens with a specific mount type it won’t attach to cameras that don’t share the same lens mounting system
First Party Advantages
1. Quality – the build quality of first party lenses (especially those made by Canon and Nikon) is part of the reason why many professional photographers don’t use anything else.
2. Compatibility – since all modern lenses are electronic, it makes sense that the camera manufacturers are the one who can make lenses that are most compatible with their cameras.
Third Party Advantages
1. More Options – camera manufacturers can’t make a lens to suit every need, which is why the third party companies are able to step in and fill the gaps.
2. Lower Prices – in order to be competitive with the big camera companies, many third party lenses don’t cost as much as the first party alternatives.
The quality of third party lenses has also improved, so many of them are now indistinguishable from a similar first party lens.
Third party lenses is that they favor the two leading manufacturers: Canon and Nikon. If your digital SLR is made by Pentax, Olympus or Sony, it will be much easier to find a first party lens.
Which One To Choose?
When you have a complete picture of the lens you would like to have, see what’s available.
If a third party lens is a closer match to your ideal lens than a first party, then I would recommend you buy the third party lens without hesitation.
if there is a first party lens that is also a strong contender, then compare the two side-by-side
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