Should I get the Sigma 24mm f1.4 lens or the 35mm f1.4?

Sigma 18-35mm f/1.8 DC HSM Art review

I would rather suggest you to go for sigma 18-35/1.

8 dc hsm art, which will give you effective 35mm focal range from 32.

4mm to 63mm.

,Though i dont own this lens have read many great reviews about it.

It was none of lenses that i wanted to buy when i was using crop sensor camera.

,Nevertheless consider my advice once before purchasing one :)

sigma 50-100mm f1.8 weight

Hereu2019s what you want to look at.

The Blackmagic Pocket 6K camera sports a u201cSuper35mmu201d sized image sensor, 23.

1 x 12.

99 mm, and uses the Canon EF lens mount.

So this is a 1.

55x horizontal crop factor; given the aspect ratio, the horizontal crop is the most meaningful.

,The resolution of this sensor is 6144 x 3456, 21.

2 megapixels, which is basically what youu2019d call DCI-6K, if the Digital Cinema Initiative actually had a 6K spec.

So this has about the same pixel pitch as a 24 megapixel Canon APS-C sensor, or a 60 megapixel full frame sensor.

Thus, if you buy a full frame lens, youu2019re going to want one made for a very high resolution camera to get the best results when cropped.

,Every lens being designed is made for a specific target of size, weight, and price (SWAPu2026 itu2019s a thing!).

The resolution you get in the best lenses of today is at least part of that formula.

Canon made plenty of L-series lenses that they wouldnu2019t recommend as optimal for a 60 megapixel camera, and we know this because they actually produced a list of recommended glass for the EOS 5DS when it came out.

,I would claim your best Sigma ART lenses are the three u201cDCu201d lenses designed for APS-C: the 30mm F1.

4 DC HSM, the 18-35mm F1.

8 DC HSM, and the 50-100mm F1.

8 DC HSM.

These are probably going to deliver better images on this camera than anything from Canon in this price range.

Canon doesnu2019t make any pro-grade APS-C lenses until you get to their cinema line, which start at close to $4,000 each.

,You can, of course, mount full-frame Canon EF lenses.

They make some very nice L-series lenses, and at least some of these are designed in the era of their 50 megapixel DSLRs.

However, given the cropping of the Super35 sensor, youu2019re leaving 2/3 of the resolution u201con the fieldu201d.

Youu2019re probably ok with any Canon lens thatu2019s recommended for high resolution cameras like the EOS 5DS.

But Iu2019d go with the Sigma Art series for APS-C/Super 35mm.

These might be the best APS-C lenses at reasonable prices from anything this side of Fujifilm (which wonu2019t mount on this camera).

,Given that most of Canonu2019s cinema line use a similar Super 35mm sensor and Canonu2019s highest current resolution is 5.

9K, you can bet any of their cinema line would be perfect for the Pocket 6Ku2026 just a strain on the wallet.

Cinema lenses offer a number of advantages (rack gearing, T-stops, no focus u201cbreathingu201d, etc), but you do pay for them.

And while Canonu2019s certainly planning for 8K, donu2019t expect these lenses donu2019t need to change if we keep accelerating resolution.

,As an alternative, you might also check out Rokinonu2019s Cine and CIne DS lines.

They have a handful of these lenses u2014 desined for cinema shooting u2014 that are for APS-C sensors.

They have a good reputation and theyu2019re very affordable.

Rokinon also offers the Xeen line, higher-end cinema lenses.

Sigma 50-100 Fuji

Because different photographers have different needs, and some designs are easier to make.

,For example, the 24u201370 f/2.

8 is one of the most common lenses you can get.

You can literally get it on almost any camera system that uses a 35mm or smaller sensor.

,Itu2019s a really useful focal length range.

At f/2.

8, itu2019s a pretty chunky lens, but it makes for a managable size, too.

If the lens was designed to go wider, it would require a more exotic optical design - this would be bigger, heavier, and more expensive.

It the lens was designed to go more telephoto, it would be significantly larger.

In the past, the 28u201370mm f/2.

8 was the u201cstandardu201d pro lens (You may also see 28u201375mm or 28u201380mm - with less on the wide end it was practical to extend the zoom a bit more).

Now itu2019s a 24u201370mm.

,Of course, if you want more zoom range, thereu2019s the 24u2013105mm f/4 or 24u2013120mm f/4.

These lenses make more optical compromises than their 24u201370mm friends.

But with a smaller aperture, you get a bit more zoom in a slightly smaller lens.

,There has been a 100u2013300mm f/4 - it wasnu2019t very popular.

Large aperture telephoto zoom lenses are big and expensive.

Sigma makes a 120u2013300mm f/2.

8, which is huge and expensive.

Canon and Nikon make 100u2013400mm f/5.

6 lenses and 200u2013400mm f/4 lenses.

Is that enough?,Usually people buying zooms want something longer range (See the Nikon 200u2013500, Tamron and Sigma 150u2013600, and Canikon 80/100u2013400mm lenses), or something that is more hand holdable (70u2013200 f/2.

8s are probably the #2 most popular pro zoom lens).

,But there are some lenses that donu2019t fit in to the established common ranges.

,Sigma made a 50u2013150mm f/2.

8 - targeting APS-C camera users that wanted a 70u2013200 equivalent with a large aperture but at a smaller size.

,Pentax/Tokina made a 60u2013250mm f/4 also targetting APS-C cameras.

Thatu2019s an interesting option - itu2019s like a 100u2013400mm f/5.

6 but on a smaller sensor.

Turns out I think people just want the 100u2013400mm lenses, though!,Some other oddball lenses include:,Sigma 18u201335mm f/1.

8 (35mm format f/2.

8 equivalency for APS-C users),Sigma 50u2013100mm f/1.

8 - another fast lens for smaller formats,Pentax has a 20u201340mm f.

2.

8u20134 (!?!) APS-C lens - I think the idea there was for a high quality, small lens that has a fairly large aperture.

,Fuji has decided to focus on APS-C only and skipped 35mm - so their lenses are tailored for use on APS-C.

They have a 16u201355mm f/2.

8 (24u201380), a 50u2013140mm f/2.

8 (75u2013210), and a 50u2013230mm f/4.

5u20136.

7 (75u2013345) - Clearly a compact lens.

,Panasonic has a 12u201335mm f/2.

8 (like a 24u201370), a 35u2013100mm f/2.

8 (Like a 70u2013200), but you can also get a 12u201360mm f/2.

8u20134 (24u2013120), a 40u2013150mm f/2.

8 (80u2013300), a 45u2013175mm (90u2013350).

,Usually the f/2.

8 lenses are in very standard ranges.

But when you get to smaller apertures you will find more oddball focal length ranges - probably because they can make longer zooms at reasonable sizes.

Adding 50mm of focal length to a 70u2013200 f/2.

8 would make it huge.

But making a 55u2013250mm f/5.

6 lens instead of a 55u2013200mm lens wonu2019t be a whole lot bigger.