Look I've got this high-end jewelry shoot in NYC next Thursday and my current glass just isnt cutting it for these macro-adjacent crops. Ive been looking at the 50mm 1.2 GM since everyone says its king but then I see people swearing the 135mm GM is actually sharper across the frame.
Then there's the Sigma 85mm DG DN which is way cheaper but is it actually 'sharper' or just high contrast? I need absolute clinical perfection because these prints are gonna be huge and I dont have time to rent and test everything before the deadline. My budget is $2100 max. Which one actually wins for pure resolution on an a7R V?
> Which one actually wins for pure resolution on an a7R V? If you are chasing absolute clinical perfection for jewelry on a 61MP sensor, you gotta look at the macro glass! While the Sony FE 135mm f/1.8 GM is legendary for its resolving power and it truly is one of the sharpest pieces of glass I have ever owned, the minimum focus distance can be a real pain for tight jewelry crops. For your specific NYC shoot, the real king of clinical is actually the Sigma 105mm f/2.8 DG DN Macro Art. I am serious, this thing is a total monster on the a7R V! The level of micro-contrast is just fantastic and it handles chromatic aberration way better than the 85mm or even some of the older GM glass. Since you mentioned high-end prints, you need something that doesnt show purple fringing on those diamond facets. The Sony FE 50mm f/1.2 GM is amazing for portraits, but it is totally overkill for jewelry where you are gonna be stopped down to f/8 or f/11 anyway just to get enough depth of field. If I were in your shoes with a $2100 budget, I would grab the Sigma macro and maybe the Sony FE 90mm f/2.8 Macro G OSS to compare, tho the Sigma usually wins on pure biting sharpness in the corners. Both are way under your budget and will give you that holy cow detail you need for massive prints. Go with the Sigma 105mm... it is basically a cheat code for high-res product work!
Re: "> Which one actually wins for pure resolution..."
- Agreed on macro glass. The Voigtlander 65mm f/2 Macro APO-Lanthar is surgically sharp and well under budget. Im super satisfied with it.
I did a high-stakes watch shoot last year and was totally obsessed with finding the sharpest glass for those tiny engravings! You honestly cant go wrong with these two for reliability and sheer detail:
- Sony FE 90mm f/2.8 Macro G OSS: This lens is a total workhorse. I love it because the autofocus is snappy for a macro and it's basically distortion-free. For jewelry, that 1:1 magnification is a lifesaver when you want those crazy close-up shots of diamond facets.
- Sony FE 50mm f/1.4 GM: People always talk about the 1.2 version, but this 1.4 is more practical and just as sharp while saving you some serious cash. I used it for a series of high-end perfume bottles and the micro-contrast was just amazing on my a7R V! Honestly, stick with the 90mm if you're doing true macro stuff. It hasn't failed me once in years of constant use and the reliability is just fantastic for professional gigs... hope the NYC shoot goes well!
In my experience, absolute resolution on the a7R V is easily ruined by small technical errors. Over the years, I have learned to watch out for these specific issues:
- Avoid lenses with significant field curvature; it kills the clarity at the edges of the frame.
- Be cautious with ultra-fast glass since wide apertures often sacrifice clinical micro-contrast.
- Watch for chromatic aberration, it is a nightmare on reflective metallic surfaces.
