[sergysergy]

Hi all,

Is the Sigma 100-300 f4 EX a full frame lens? I am talking about the non-dg version. I have read it is but I thought only DG Sigma models were FF. I am confused
Also, do you think it is a nice lens?

Thanks

[JinDesu]

From what I read on the web, Canon users use it on full frame cameras.

[Adam]

Hi all,

Is the Sigma 100-300 f4 EX a full frame lens? I am talking about the non-dg version. I have read it is but I thought only DG Sigma models were FF. I am confused
Also, do you think it is a nice lens?

Thanks

It should be, unless it's DC.

BTW, I've removed that lens DB entry since it contained no specs, reviews, or pics.

[jimr-pdx]

I believe the EX alone implies full frame with Sigma, and they added DG and DC designations later. I had their EX non-DG 15mm fisheye and it covered the film frame nicely. And what I've read of the 100-300 f/4 has been quite good; way too big a beast for me, I'll stop at their 50-150.

[pxpaulx]

I believe the EX alone implies full frame with Sigma, and they added DG and DC designations later. I had their EX non-DG 15mm fisheye and it covered the film frame nicely. And what I've read of the 100-300 f/4 has been quite good; way too big a beast for me, I'll stop at their 50-150.

It is definitely FF, considered buying it for my d600.

[Bob TN]

Yes, it is. I own it in another mount. It is a superb lens btw. Sigma should really do an OS update to it.

[scratchpaddy]

I believe the EX alone implies full frame with Sigma, and they added DG and DC designations later. I had their EX non-DG 15mm fisheye and it covered the film frame nicely. And what I've read of the 100-300 f/4 has been quite good; way too big a beast for me, I'll stop at their 50-150.

I don't think the EX has anything to do with the sensor size the lens is made for. My favorite lens is the 30mm f/1.4 EX DC, that is, "DC" for "Digital Crop." Definitely not full-frame. From what I've read, it's just a finish level, like saying "deluxe." This is from Sigma's website:

The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance

I kind of wish lens manufacturers would cut it out with all these cryptic acronyms, or at least get together and come up with some unified terms between brands!

[Lowell Goudge]

With sigma lenses, ones produced prior to the DG and DC classification were for film, hence they are by default Full frame. The D in DG or DC stands for digital coatings, specifically rear element coatings to stop reflections from the sensor on the rear element. The G is full frame C is cropped sensor

[sergysergy]

Thank you guys!
As for the lack of reviews I noticed that they are posted together with those of the DG version.

[AdrianM]

Sergysergy - the only lens that I am aware of that sort-of fits your description is the Sigma 100-300 f4 APO DG EX. The "DG" means full frame. As far as I am aware there isn't such a thing as a non-DG vrsion.

[sergysergy]

Hi Adrian, the non-DG version (just EX) does exist.It is the previous model.

[sergysergy]

Hi Adrian, the non-DG version (just EX) does exist.It is the previous model.

For example:
https://www.pentaxforums.com/forums/sold-items/155360-sale-sold-sigma-ex-apo-if-100-300-f4.html

[Digitalis]

Yes, the sigma 100-300mm f/4 APO EX DG is a full frame lens. I have used it on my Pentax LX and K2 DMD. I also have another copy of this lens in Nikon F mount that I use on my Nikon D4.

I believe the EX alone implies full frame with Sigma

Not always, EX stands for "Excellence" label Similar ro Canon and their lens designation "L" for Luxury. However there have been EX lenses from sigma that aren't full frame capable, and furthermore posess optical shortcomings that make them completely unworthy of that designation*: the Sigma 30mm f/1.4 being among them.

*at least to me.

[TenZ.NL]

Sergysergy - the only lens that I am aware of that sort-of fits your description is the Sigma 100-300 f4 APO DG EX. The "DG" means full frame. As far as I am aware there isn't such a thing as a non-DG vrsion.

Actally DG stands for Digital, which means this are FF lenses optimized for digital camera`s.
Quoted from Sigma`s website:

DG for Digital: These are large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for Digital SLR Cameras whilst retaining suitability for traditional 35mm SLRs.

So that would make all DGlenses suitable for FF. However, I don`t think the 70-300 F4.5-5.6 DG for example isn`t really large apertured