SirSeth

SirSeth

Lives in United States Hagerstown, United States
Works as a Teacher
Has a website at wallygoots.smugmug.com
Joined on Feb 8, 2004
About me:

My plan is to ever improve my trade, my hobbies, and my relationships with family, friends, and my God. My trade is teaching Math and Computers. My primary hobbies are lutherie (guitar building) and photography. My God is slow to anger and abounding in love. He will not always accuse, nor will he harbor His anger forever; He does not treat us as our sins deserve or repay us for our iniquities. For as high as the heavens are above the earth so great is His love for those who fear him. As far as the east is from the west so far has he removed our transgressions from us. If you have questions or gripes about my God, I always enjoy talking with someone who is a seeker. Rock throwers are rarely convinced of anything spiritual and I can respect their desire to believe differently than myself.

Comments

Total: 862, showing: 1 – 20
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In reply to:

sh10453: Summary on the front page says "The lens offers a 50mm full-frame equivalent field of view and an ultrafast F0.95 aperture ...".
Isn't that a50mm f/1.9 equiv. on a full-frame?

This question was fully answered nearly 20 years ago and a billion times since. Yes, you can frame every number in favor of full frame. No, DPR doesn't have to state the obvious or debunk the obvious.

Link | Posted on Mar 20, 2022 at 01:33 UTC

The point for me wasn't a king of the mountain smack down. Of course the extra 5k gets you something. For me, the video was entertaining, humorous, and informative to see what different cameras can do in the same situation. Thanks for the content!

Link | Posted on Mar 20, 2022 at 01:26 UTC as 44th comment | 1 reply

The shape reminds me of the Olympus E-1 with the vertical grip. Such a great camera to hold.

Link | Posted on Nov 12, 2021 at 05:38 UTC as 6th comment
In reply to:

blank_: why does this amazon critique here feels so cringy? :)

I am less cynical. I think they give Peak their say on reasons to buy the better bag, and didn't defend Amazon even if it does highlight an Amazon product. Yes, it might alert some people to buy the Amazon sling, but it also may have people considering why the Peak is worth it which could translate to sales. Amazon using the same name is unabashed mimicry and would put me in the second group considering the Peak.

Link | Posted on Mar 9, 2021 at 17:55 UTC
In reply to:

alvinlu: This is pretty funny since DPreview is part of Amazon

Shows some journalistic independence, which is nice. Also nice that end the article with a statement that clarifies the relationship. Also nice.

Link | Posted on Mar 9, 2021 at 17:48 UTC
On article Hands on: Olympus 150-400mm F4.5 TC1.25x (716 comments in total)
In reply to:

SirSeth: I see a couple of major benefits. Having owned Sony FF and Olympus (and Fuji), the weather sealing, dust busting, and IBIS of the Olympus are superior compared with Sony. The size and reach of this lens is really made possible by the system and sensor size. The price is 5-10k less than a Nikon or Canon super tele of the same reach, but I would find handholding basically a no-go. In other words, it may be worth it for some folks to buy an Olympus camera just to use with this lens because camera and lens would be cheaper and have different strengths than a 12k super tele from Canon or Nikon (especially if you don't already have a DSLR system). The slightly smaller sensor means a faster body with deeper buffer in a smaller cheaper body.

I think Darren is right and wrong. If one want's to say (and it's been said a lot) that because of the sensor size of 4/3rds cameras, an f4 lens is actually an f9 lens in every way, then he is wrong. Exposure works like f4. Where he is right is that because of the sensor size, the depth of field, is deeper--theoretically comparable to an f9 on full frame. I'd love a lens this size/weight and specs for my FF, but they don't exist. The sum is more than the parts with any system, but one can always find a way to stack the parts to hypothetically favor FF. I can confidently guess that dust busting, weather sealing, IBIS, size, speed, and weight with this system are strong advantages that function together to get good pictures compared to FF mirrorless of any brand. Exposure is f4, DOF comparatively is f9 if everything must be in 35mm terms (buy why?). I can see buying a camera for this lens. I'd most certainly keep my FF for other lenses however; in portrait and low light, FF is king.

Link | Posted on Dec 5, 2020 at 18:48 UTC
On article Hands on: Olympus 150-400mm F4.5 TC1.25x (716 comments in total)

I see a couple of major benefits. Having owned Sony FF and Olympus (and Fuji), the weather sealing, dust busting, and IBIS of the Olympus are superior compared with Sony. The size and reach of this lens is really made possible by the system and sensor size. The price is 5-10k less than a Nikon or Canon super tele of the same reach, but I would find handholding basically a no-go. In other words, it may be worth it for some folks to buy an Olympus camera just to use with this lens because camera and lens would be cheaper and have different strengths than a 12k super tele from Canon or Nikon (especially if you don't already have a DSLR system). The slightly smaller sensor means a faster body with deeper buffer in a smaller cheaper body.

Link | Posted on Nov 20, 2020 at 18:30 UTC as 14th comment | 40 replies

I'd like to hear from you guys how you see technology improving the current tools or if implementation of new tools is possible. Focus peaking is typically faster than magnified view, but it sometimes really misses the mark for critical focus or obscures parts of the image where we are really trying to see critical focus. I use a lot of manual focus lenses: FD80-200mm f4L, FD 500mm f4.5L, 100mm f2.8 1:1 Macro. As EVFs have improved, we get better focus feedback, but I would really like to see new implementations of magnified window: such as being able to move the magnified window with the joy stick, or a magnified window that follows moving subjects in the viewfinder. Focus peaking could improve in accuracy without obscuring the critical areas: for example, reverse focus peaking that masks defocused areas with opacity to help us see the critical focus areas much more quickly and accurately.

Link | Posted on Oct 2, 2020 at 17:04 UTC as 12th comment | 3 replies
In reply to:

Tester_v: If you are 60+ years old this is the way to go.... Swinging A9 with 1.4x converter and the 200-600mm for more then 2 hours is very, very hard... I'm thinking Oly makes very appealing cameras and the 300mm f4 is an excellent lens... this one seems ok too...

I've shot with Olympus and Sony, both using an FD 500mm f4.5L. Olympus IBIS and dust busting are better. Sony resolution, DR, and high ISO are better. Bodies were about the same size/weight for me. Native Olympus lenses are smaller and offer a crop multiplier that helps fill the frame. Typically Olympus is much less expensive. But I shoot Sony now because of the resolution and latitude in RAW. I've used the Sony 200-600mm and it's a really good value. What I'd like is the A7Riv with 400mm f2.8 though + 1.4x and 2x because even on FF I find the aperture of these smaller lenses really limiting.

Link | Posted on Aug 5, 2020 at 16:06 UTC
In reply to:

paulfulper: Is this sharper than Sony ff gm 100-400 ?

The Sony lens can only pair with a larger sensor with higher resolution which changes apparent sharpness, diffraction, and how we may sharpen in post. What matters if you can get sharp photos on the camera a lens matches, which in this case, you can see from the gallery. The size, weight, and excellence of Olympus IBIS may all work to achieve sharper photos for a given incidence, but with Sony you can use higher shutters speeds by pumping ISO to help keep things sharp. Nearly all modern lenses a capable of sharp pictures and minimize lens faults. Just add skill.

Link | Posted on Aug 5, 2020 at 15:57 UTC
In reply to:

sohus: The bottom-line is very simple:

Canon made a mistake. They went for the marketing headlines of "8k video" and now everybody just focuses on the overheating.

Apple would have never implemented a feature like this. Either something works reliably, or it doesn't. They should have stuck with the video modes that work well and make sure they are extremely reliable.

I can see the market for 8K but no way there is a need for that now on a primarily photo oriented camera product.

"Just because you can, doesn't mean you should".

Typical manifestation of Canon's philosophy: product features dictate the product, not the user experience (which is leading at Apple, Google or any other Silicon Valley company).

There is also a lot to be said about bananas.

Link | Posted on Aug 5, 2020 at 15:45 UTC

I think Olympus survived as long as they did because they dropped DSLRs and went all in with mirrorless early. In that way they saw the future. What they didn't see in the future is that no matter how many professional features they packed in, too many were just not convinced without a FF sized sensor in back of it all. Panasonic played it smarter by going all mirrorless, then going for the video market, then going FF. They had to specialize and diversify. It's yet to be seen what the new company does with Olympus. I shot with Olympus through E-1, E-3, E-M1 and enjoyed many things about the system. The dust buster and IBIS was second to none. The lenses are smaller and the total package can be made smaller and lighter for certain conditions. I now shoot a Sony A7Rii and really value the DR, resolution for cropping and sharpness, shallow DOF for portraits, but miss the ruggedness, dust buster, pleasing color, and lens affordability and size.

Link | Posted on Jul 24, 2020 at 17:38 UTC as 149th comment | 4 replies
In reply to:

ericbowles: You're missing the target market for these lenses. For the past 5 years Canon has targeted bird photographers at birding festivals. They have done very well - and Nikon and Sony are not factors in this segment. But they did not really have anything for the birder. These lenses are for birders who need a photo. It's the equivalent of a spotting scope with a better camera capability. Add the ability to zoom through the EVF, and you have something useful.

Hi ISO noise is not really an issue for this market. The alternative is a consumer zoom, or a spotting scope and an iPhone. Output will end up being smaller than normal - so the noise goes away.

Go to any birding site and look at the photos being posted. These lenses can deliver something much better, and it's a good entry into the birder market.

Yeah, you make some good points. Still, I'd rather f8 and a little larger if all else is equal.

Link | Posted on Jul 10, 2020 at 03:59 UTC
In reply to:

Gray Photography: f/11? Been shooting wildlife for years and I can't imagine I'd ever want a lens with a maximum aperture of f/11. High ISO not being an issue for this market? Wrong. It's not an issue for people who don't care about the quality of their photo perhaps. I sell a ton of bird photos and don't know that any of them are shot at f/11 or above ISO 3200.

Still scratching my head over these two lenses.

Yep. I shoot with a Canon FD 500m f4.5L on my A7Rii and rarely ever shoot above f8 or over ISO 3200. Of course, I'd rather shoot AF on an A7Riv, but... I still always want more speed. What I really covet is a 400mm f2.8 with 1.4x and 2.0x available when needed. I'd pretty much always shoot between f2.8 and f5.6. Of course that's serious dough needed, so different conversation. I suppose for the price of these it's the only FF option, so yay Canon users on a budget.

Link | Posted on Jul 10, 2020 at 03:58 UTC
On article DPReview TV: Tamron 20mm F2.8 review (86 comments in total)

I would really love that Sony 20mm f1.8! (or 24mm f1.4) But this one is attainable for my budget and sheds weight, size, and cost. I think that's the point.

Link | Posted on Mar 18, 2020 at 15:51 UTC as 29th comment | 3 replies
In reply to:

SirSeth: The world is ending for 3-4% of people infected. Of course people have been killing themselves with nicotine and diet for years, so.... let's go take pictures!

Good day Roland! Questionable in that it's not set in stone--yes! It's a constantly developing statistic. Most of us who study math value that journey toward certainty, but reserve absolute certainty for fields apart from stats. As a current indicator 3-4% is a reasonable range for the data we have. We definitely need more and better data!

Link | Posted on Mar 18, 2020 at 15:38 UTC

The world is ending for 3-4% of people infected. Of course people have been killing themselves with nicotine and diet for years, so.... let's go take pictures!

Link | Posted on Mar 17, 2020 at 16:11 UTC as 185th comment | 2 replies
In reply to:

panther fan: If you can get this level of performance at 373g with all the bells and whistles of premium lenses, like aperture ring, weather sealing, and function button, what is Nikon doing with their Z line?

This lens is smaller and cheaper: (373g, 73.5×84.7mm) vs (505g, 84.5 x 108.5 mm)
900$ vs 1049$

Can you do a side by side with the Nikon once it's released, so we can see what the extra weight, price and mount diameter gives us in performance that this lens doesn't have?

I'd say stop liking stupid "King of the Mountain" posts. Doesn't every mount need great lenses? Competition keeps price low and quality high. It doesn't matter exactly how this compares to the offerings of Nikon if one already shots with a system of their choice. $150 is nothing compared with switching systems, and those who do base their decision on a variety of reasons. Sony wide angle shooters to rejoice (and start saving up)! :) Nikon shooters, enjoy what you have because the competition is what is driving it.

Link | Posted on Feb 25, 2020 at 18:33 UTC
In reply to:

d2f: Astrophotography application?

Yes, we will see that soon. This looks to be a near perfect astro/night/landscape lens.

Link | Posted on Feb 25, 2020 at 18:18 UTC
In reply to:

Lessiter: rishi "Animal eye AF also made this shot a breeze to capture."

Hmm.. isn't that a sleeping cat? I've never heard anyone having trouble focusing on a sleeping cat. These fancy af comments are getting more and more strange.

That it can identify a sleeping cat's eye with that degree of accuracy is fantastic and adds credibility to the power of the algorithms programmed into the newest cameras. You may take it for granted, but I think it's no small feat to detect any eye, sleeping or waking, motionless or not, for a variety of creatures and in a variety of lighting conditions in a nano-second. AI is a growing field that is more than a curiosity.

Link | Posted on Feb 25, 2020 at 18:16 UTC
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