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12-14-2021, 01:24 PM - 1 Like   #1
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DFA 28-105 versus DFA 24-70 for walk around

I'm sure this has been discussed a bit, but my recent search did not reveal much. I have heard raves about the 28-105 because of its value and quality for what it is, and I have heard disappointments with the 24-70.
Help - I am vacillating. It would seem easy to pick up the 28-105 for a vacation/walk around lens. However, I worry I would want the 2.8 fixed aperture for low light. I would have thought the 24-70 would be higher quality all around also, but that is not what I'm reading. I don't have other options right now for a full frame wide angle lens, and so the 24mm is also somewhat appealing.
I know, it all depends on personal factors, but any input from someone who has used both or favors one over the other would be appreciated!

12-14-2021, 01:55 PM - 1 Like   #2
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Google the title of your post.
12-14-2021, 02:01 PM - 2 Likes   #3
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QuoteOriginally posted by jlstrawman Quote
Google the title of your post.
To find this:

Pentax 24-70 vs 28-105 - PentaxForums.com

For the next person viewing
12-14-2021, 02:33 PM - 2 Likes   #4
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Don't neglect the fact that the 24-70 is larger and heavier by a fair amount. You mention walkaround/vacation, so that may be a big deal to you.

Also remember that lukewarm reviews of the 24-70 are probably comparing it to other fixed aperture pro zooms, whereas glowing reviews of the 28-105 are probably comparing it to other consumer kit lenses. Perhaps that's a bit like comparing a 5 star animated children's comedy to a 3 star Oscar-nominated period drama, based only on the star ratings.

12-14-2021, 03:23 PM - 2 Likes   #5
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I have used both extensively over the past five years. The 28-105 is as good as they say and the 105mm is very handy. Super small and lightweight. I wouldn't worry too much about low light, with the combination of the K1's high iso and shake reduction, you can get great images in very low light.
That said, the 24-70, while being a chonker, is a slightly better lens in general all around. The IQ, faster autofocus and aperture facilitate professional level work. I would hike and travel with either lens, but I wouldn't take the 28-105 to a paid gig.
12-14-2021, 03:38 PM - 1 Like   #6
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I tried both and I kept the 28-105, it is better than I expected (and it was <$300). I miss the wider angle more than the 2.8.

For walk around my vote is on the 28-105. I think it is so good value for the price, even if you change your mind later, you can switch to the big 24-70 without burning too much money.
12-14-2021, 04:05 PM - 2 Likes   #7
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Price is always a big difference in reviews. You pay more and expect more, and maybe expectations get too high. People also tend to give higher marks to something they may consider a bargain.

12-14-2021, 05:36 PM - 1 Like   #8
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DFA 28-105mm plus an FA 31mm f1.8 Limited (or FA 43mm f1.9 Limited) for low light seems like a very good compromise
12-14-2021, 05:52 PM - 1 Like   #9
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Havenít used any of them. But the size and range point to the 28-105
12-14-2021, 06:21 PM - 1 Like   #10
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I've got both lenses. The 28-105 is a great lens for the price. And it is lighter than the 24-70.

The 24-70, I think...is not all that better in pix quality than the 28-105, and it is heavier , but it has that F 2.8....which is important too me. The 24-70 is pricier too.

But I'm glad I have both...the 24-70 for it's fast F 2.8 and it's wider angle @ 24mm. The 28-105 for it's further reach @ 105, it's lighter weight as a carry around , and it's good image making quality (although the 24-70 is also good).

I take a lot of indoor pix as of Covid late, so I do find myself appreciating the fast F 2.8 aspect.
12-14-2021, 06:59 PM   #11
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Thanks everyone. Just got the K-1 not long ago and I am wanting to judiciously begin getting some full frame lenses for it. Already had the DA* 300 which I'm loving on the K-1. I appreciate everyone's thoughts. I doubt I will be disappointed with either.
12-15-2021, 02:12 AM   #12
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If "walk around" means what it should, then the 28-105 is the obvious choice. The 24-70 is too heavy to just be something you leave on the camera for shots of opportunity. It's more a deliberate choice than a default.

Having said that, I don't really follow my own advice. The 15-30 and 70-200 spend a lot of time on my K1 for street photography. But I'm a glutton for punishment.
12-15-2021, 06:19 AM   #13
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QuoteOriginally posted by Paul the Sunman Quote
Having said that, I don't really follow my own advice. The 15-30 and 70-200 spend a lot of time on my K1 for street photography. But I'm a glutton for punishment.
The 70-200 seems like a reasonable idea, considering the reach. Keeping a distance in street photography is a necessity nowadays. People get frustrated, angry or even aggressive. Holding the K-1 doesnít offer much camouflage anyway.
12-15-2021, 06:33 AM   #14
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QuoteOriginally posted by tjscot Quote
raves about the 28-105
Well-deserved

QuoteOriginally posted by tjscot Quote
disappointments with the 24-70
Undeserved. Have a look at the Pentaxforums review

QuoteOriginally posted by tjscot Quote
It would seem easy to pick up the 28-105 for a vacation/walk around lens. However, I worry I would want the 2.8 fixed aperture for low light.
On Pentax, I think the 28-105 coupled with a fast prime (for instance 43mm) makes a better option for vacation-walkaround than the 24-70. The 24-70 is more, in my opinion, of a dedicated-purpose lens.
12-15-2021, 07:30 AM   #15
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QuoteOriginally posted by bdery Quote
On Pentax, I think the 28-105 coupled with a fast prime (for instance 43mm) makes a better option for vacation-walkaround than the 24-70.
Pretty much everyhting has been said already... I'll second that (although maybe more than just 1 prime )
The 24-70 is just too bulky -- for my taste of course.
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