Sigma 30mm f/1.4 : new sharpness champion?: Micro Four Thirds Talk Forum: Digital Photography Review

Sigma 30mm f/1.4 : new sharpness champion?

Started Jun 14, 2016 | Discussions

Pixnat2 • Veteran Member • Posts: 5,767

Sigma 30mm f/1.4 : new sharpness champion?

Jun 14, 2016

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

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eques • Veteran Member • Posts: 4,115

Re: Sigma 30mm f/1.4 : new sharpness champion?

In reply to Pixnat2 • Jun 15, 2016

Pixnat2 wrote:

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

Sharper yes, better, that is a different question. - I have a old Minolta lens that, though not very sharp, just has a beautiful rendering and is my favorite lens for colorful motives.

However, I would have hoped for a F1,4 wide angle, somewhere between 14 and 18 mm. It would have been better for M43 where we still don't have an outstanding fast lens (the PL 1,4/12 is too wide for me).

And even for Sony E crop sensor cameras it would seem better: they have some good and fast 32-35mm lenses, but only one huge and expensive fast WA.

A 1,4/50-60mm lens also would have been more useful for me, the optically excellent 2,8/60 just is too slow (and also no macro lens to make up for slow speed).

Peter

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tkbslc • Forum Pro • Posts: 17,527

Re: Sigma 30mm f/1.4 : new sharpness champion?

In reply to Pixnat2 • Jun 15, 2016

Pixnat2 wrote:

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

Yeah, but that record resolution is at f5.6, It's pretty weak at f1.4, and f1.4 is why most people are buying the lens. Their kit zoom does f5.6 already.

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Martian Flatcat • Regular Member • Posts: 457

Re: Sigma 30mm f/1.4 : new sharpness champion?

In reply to tkbslc • Jun 15, 2016

tkbslc wrote:

Pixnat2 wrote:

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

Yeah, but that record resolution is at f5.6, It's pretty weak at f1.4, and f1.4 is why most people are buying the lens. Their kit zoom does f5.6 already.

True, but even at f2, it's still quite good, and that does beat a kit lens.

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eques • Veteran Member • Posts: 4,115

You don't make sense.

In reply to tkbslc • Jun 15, 2016

tkbslc wrote:

Pixnat2 wrote:

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

Yeah, but that record resolution is at f5.6, It's pretty weak at f1.4, and f1.4 is why most people are buying the lens. Their kit zoom does f5.6 already.

But at F1,4 and F2 it is better than the PL 1,4/25.

And at F4-5,6 it is better than all other M43 lenses they tested at any aperture.

Peter

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Bhima78 • Senior Member • Posts: 2,850

PL25 better in the center by quite a bit.

In reply to eques • Jun 15, 2016

eques wrote:

tkbslc wrote:

Pixnat2 wrote:

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

Yeah, but that record resolution is at f5.6, It's pretty weak at f1.4, and f1.4 is why most people are buying the lens. Their kit zoom does f5.6 already.

But at F1,4 and F2 it is better than the PL 1,4/25.

And at F4-5,6 it is better than all other M43 lenses they tested at any aperture.

Peter

at 1.4

http://www.lenstip.com/314.4-Lens_review-Panasonic_Leica_DG_Summilux_25_mm_f_1.4_ASPH._Image_resolution.html

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EarthQuake • Veteran Member • Posts: 3,240

Re: PL25 better in the center by quite a bit.

In reply to Bhima78 • Jun 16, 2016

Bhima78 wrote:

eques wrote:

tkbslc wrote:

Pixnat2 wrote:

It seems, according to Lenstip

http://www.lenstip.com/477.4-Lens_review-Sigma_C_30_mm_f_1.4_DC_DN_Image_resolution.html

Amazing Sigma! Better than Leica?

Yeah, but that record resolution is at f5.6, It's pretty weak at f1.4, and f1.4 is why most people are buying the lens. Their kit zoom does f5.6 already.

But at F1,4 and F2 it is better than the PL 1,4/25.

And at F4-5,6 it is better than all other M43 lenses they tested at any aperture.

Peter

at 1.4

http://www.lenstip.com/314.4-Lens_review-Panasonic_Leica_DG_Summilux_25_mm_f_1.4_ASPH._Image_resolution.html

So, the Sigma has slightly worse center sharpness, but significantly better corner sharpness at 1.4 (not surprising given it is an APS-C lens). At 2.0, the Sigma has slightly better center sharpness to go with it's superior corner sharpness.

Very impressive performance, considering the 25/1.4 is a rather good lens in its own right and that the Sigma retails for about half the price. I won't be trading my PL though, don't want the extra size or narrow FOV.

Looks like the Sigma 30/1.4 performs very similarly to 42.5/1.2 as well: http://www.lenstip.com/394.4-Lens_review-Panasonic_Leica_DG_Nocticron_42.5_mm_f_1.2_Asph._P.O.I.S._Image_resolution.html

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Sigma 30mm f/1.4 : new sharpness champion?

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