Mark Banas

Mark Banas

DPReview Contributor
Lives in United States Washington, DC, United States
Works as a Designer/ Panographer/ Writer
Has a website at http://markbanas.com/
Joined on Jan 26, 2005

Comments

Total: 349, showing: 1 – 20
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In reply to:

Daft Punk: I have never seen anyone using one of these out in the field.

Anyone with experience care to share what they are like ?

I've used an older Tokina 500mm f/8 mirror lens for a long time. It came in native K-mount, had drop-in rear filters, and weighed about as much as a 50mm prime, all for $150. The downside is that manual focus was hard on an APS-C body (small prism and viewfinder going to a dim lens), and the contrast of the resulting shots was pretty low.

Sharpness and bokeh of mirror lenses are the price you pay for a small, light, 500mm reach. That old Tokina was reasonably sharp for the reach (like a modern kit 18-50mm "sharp" - not some $6k prime), while Pentax in-body stabilization meant it didn't require a tripod. However, the 'bowl of Cheerios bokeh" is another matter; some subjects minimized it (BIF), while others were nearly ruined by the rings (until I ran over them with a P-shop blur brush).

Link | Posted on Sep 12, 2017 at 18:43 UTC
In reply to:

jadot: Tape a few Ice Lights together? Lot cheaper.

How could that be cheaper? Ice Lights are $500 a piece. This is a 4-light kit for $650.

The cheaper knockoff tube lights, or $30 work lights, won't have anywhere near the color accuracy (heck, many high-end LED panels struggle to get TLCI ratings in the 90's), so you still need to pay for quality LED emitters. Otherwise you're stuck in Photoshop trying to recover colors that your lights didn't even illuminate.

Link | Posted on Sep 1, 2017 at 13:17 UTC
In reply to:

Mark Banas: Nice to see that the beta firmware and app were able to perform the headline features (real-time stabilization, post-tracking, and fairly good stitching), however the overall image quality doesn't inspire much confidence. Will be interesting to see production reviews and full-res samples!

Also, pre-emptively, I had no problem understanding the bi-lingual presenter.

Like the rest of us, I haven't seen full-res samples yet, but these video samples and the ones on the manufacturer website are lacking in dynamic range. That's still the challenge for 360 cameras, since they capture both the light source(s) and any shadows they cast. Of course, these are made with cell phone/ action cam sensors...

Link | Posted on Aug 30, 2017 at 19:39 UTC

Nice to see that the beta firmware and app were able to perform the headline features (real-time stabilization, post-tracking, and fairly good stitching), however the overall image quality doesn't inspire much confidence. Will be interesting to see production reviews and full-res samples!

Also, pre-emptively, I had no problem understanding the bi-lingual presenter.

Link | Posted on Aug 30, 2017 at 14:40 UTC as 8th comment | 4 replies
In reply to:

Silentshuter: All photos are great,..all but first one,....that one is totally fake and it doesn't deserve to be here!! Other than that Dpreview is the best photo site EVER and does AWESOME job!!

@Silentshuter: Wow. Just wow.
Have you ever used GPS navigation? Made an intercontinental phone call? Watched a weather report? Thousands of man-made satellites have somehow gone beyond the belts with sensitive electronics intact... and no melting!! (Amazing how physics continues to work even for those who don't understand it, or refuse to believe it.) I'm sure you can pivot to another straw man even more outlandish, but the Van Allen belts misinformation is a personal thing for me (James Van Allen taught at my alma mater while I was there).

(Bonus: I can like my own posts, too!)

Link | Posted on Aug 22, 2017 at 23:59 UTC
In reply to:

KevinG: Ya know, I've been around DPR for around 17 years and I try very hard to stay positive,not get involved in any dustups, rudeness, etc. but this is just nuts!! No matter what the reason, or excuse for this is, it should be a call to anyone considering DJI stuff to just look elsewhere.

Pretty much. AFAIK Yuneec doesn't require a data connection to launch or use their drones...

Link | Posted on Aug 22, 2017 at 19:38 UTC
In reply to:

Elliot H: ATT: Mr Posner,

Please note the comments DPR/AMAZON has allowed here along with the M E G A sized B&H logo to open the story on the homepage, seems their true colors may very well be showing.

Regarding comment moderation: most of the DPR staff (of which I'm not a member) is still asleep or just grabbing a coffee on the way in.

As far as "true colors," enter "B&H" in the article search bar at the top and read through the 500+ results. Not seeing much of a slander campaign. Or would you prefer not to read news related to camera shops?

Link | Posted on Aug 17, 2017 at 13:23 UTC
On article Ten expert tips for successful macro photography (130 comments in total)

Thomas is great; rockin' the venerable Pentax and reversed lenses!

Link | Posted on Jul 23, 2017 at 22:17 UTC as 31st comment

Great video. Dustin is an awesome educator, and a real-life rocket scientist!

Link | Posted on Jun 30, 2017 at 23:44 UTC as 39th comment | 1 reply
In reply to:

Roland Karlsson: Hmmmm ... maybe I am imaging things. But those newly taken portraits lacks something that old portraits had. A kind of pride and authenticity and more alive and a kind of aura. The images here looks kind of boring. Not that they are bad, just that I do not get the feeling like looking at the real thing. Then - the trick of "no real whites" in the prints is kind of tiring in the long run.

@c45: Since when is wanting clean drinking water and some control over your own land considered "intended hatred?" Or do you know nothing about the protests in question, dude?

Link | Posted on Jun 16, 2017 at 22:36 UTC
In reply to:

BinHereBe4: If I can take REAL picture of the Moon, Saturn, Jupiter, Mars and some other stars with my $1200 telescope, why can't NASA take any REAL pictures at all with their mighty equipment?
Just another fraudulent CGI is all they can give.

I remember the good old days, when people tried to hide their ignorance and idiocy. Alas, now it seems like a badge of honor to be a "skeptic" of everything scientific (including NASA), while still happily enjoying the fruits of all that science (internet, cmos, leds, pasteurization, lack of polio, etc.).

Link | Posted on Jun 15, 2017 at 12:42 UTC
On article NAB 2017: Hot products and trends (50 comments in total)

Great overview, Dale. Thanks for presenting some of NAB's highlights with a good dose of explanation (and grounding in reality) for us not-quite-videographers... ;-)

Link | Posted on Apr 28, 2017 at 17:21 UTC as 13th comment
In reply to:

WillWeaverRVA: I look forward to reading the upcoming review of this whisky, and how it stacks up against the 5D Mark IV and Sony a99 II at its price point.

Send the Macallan my way, and I'll rent the other two... (totally getting Lenscap++ with that order).

Link | Posted on Apr 13, 2017 at 19:41 UTC
In reply to:

PhotoKhan: You can "change the game" as much as you want, resorting to DNG included.

All these samples show color casts that are very difficult to balance, as samples 63 to 65 clearly and aptly show.

Foveon sensors far from being a photographers ally make color an enemy to contend with.

It has been so for 15 years and, apart from proving that a significant part of the population is, indeed, color blind, it is a mystery tantamount to commercial suicide why Sigma insists on this technical solution.

Normally I don't respond to trolls (and boy are you trolling - looking at your comment history shows a lot more), but I'll make an exception for you, oh great Khan of Photography.

1) I don't represent the staff at DPReview. I'm a contributing writer, not a staff member. Like them (and you), I can still discuss whatever I want, and comment however I feel.

2) If you need numbers to prove you are right and everyone who disagrees is wrong, provide your numbers and see if anyone can refute your "data." Unless, of course, you can't...

3) Speculating on the health and eventual future of Sigma Corporation based on what the CEO has said is a sideline business is a great way to troll, but like many of your other distractions and innuendos, it is purely speculative fiction.

4) A great man named Humberto once wrote, "Sometimes, all that is needed is an intentional, different view on ordinary things to let them truly shine under a different light." Maybe Sigma is actually trying this?

Link | Posted on Apr 9, 2017 at 16:56 UTC
In reply to:

PhotoKhan: You can "change the game" as much as you want, resorting to DNG included.

All these samples show color casts that are very difficult to balance, as samples 63 to 65 clearly and aptly show.

Foveon sensors far from being a photographers ally make color an enemy to contend with.

It has been so for 15 years and, apart from proving that a significant part of the population is, indeed, color blind, it is a mystery tantamount to commercial suicide why Sigma insists on this technical solution.

If Sigma has been committing commercial suicide for 15 years, it's a very slow process.

Link | Posted on Apr 9, 2017 at 14:17 UTC
On photo everypixel in Okapi001's photo gallery (1 comment in total)

Yep... awesome.

Link | Posted on Apr 7, 2017 at 19:38 UTC as 1st comment
In reply to:

Steve Balcombe: I hate it when people complain that something is not interesting, not news, and not worthy of our valuable time which must not be wasted with trivia. No, I don't like it and I don't want to be that guy.

So. Bloke get old lens for next to nothing at a flea market, uses adapter to fit it to digital body, takes crap photos because the lens is of course worthless. Good stuff dpreview, we need more groundbreaking features like this.

You're that guy.
It's okay - just own it.

Link | Posted on Apr 4, 2017 at 11:44 UTC

Well, let's hope they addressed the overheating/fogging issues as well.

Link | Posted on Mar 29, 2017 at 22:49 UTC as 14th comment | 1 reply
In reply to:

panther fan: The code that is the base of all that including services like prisma can be found here:
https://github.com/jcjohnson/neural-style

If you want to experiment with the new style transfer the code can be found here:
https://github.com/luanfujun/deep-photo-styletransfer

You should check out the last link for more amazing examples.

Thanks for the links. I like the apple photo series, where the input and target style were the same image, and the output was subtly different. Gives a clue to the limits of the transfer.

Link | Posted on Mar 28, 2017 at 13:22 UTC

I just want to say that Barney's example image is outstanding. Don't care if it comes off as sycophantic...

(Oh, and I'd probably stick with a fast 105mm, as long as it was also a macro.)

But that image, Barney. Wow.

Link | Posted on Mar 27, 2017 at 11:58 UTC as 223rd comment | 6 replies
Total: 349, showing: 1 – 20
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