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A99ís are scarce, should I go A7 with adaptor?

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Frozenpixels View Drop Down
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Post Options Post Options   Quote Frozenpixels Quote  Post ReplyReply Direct Link To This Post Topic: A99ís are scarce, should I go A7 with adaptor?
    Posted: 07 October 2021 at 14:26
Hey folks, total amateur here, can I ask what your impressions are of the A7? Iíve noticed lots of A7s for sale but virtually no used a850/900ís or a99ís and I want to get into a full frame. I located a used 99 but it needs repair. As I have nearly a dozen Minolta lenses I want to play with.
I think I can use an e-a lens adaptor with decent success?

Thereís a real abundance of A7ís and e lenses in my area and I have to ask why. (Vs no used a mount FF cams)

Do people not like them?
 



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QuietOC View Drop Down
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 15:10
The original A7 is much less than ideal for A-mount. It only has very slow contrast-detect AF with the LA-EA3 and 5 adapters, and it lacks sensor stabilization. It is really a body for native FE OSS lenses.

While I haven't used the A7, I tried several of the older E-mount APS-C bodies with A-mount adapters and would not recommend that experience.

The A7II adds 5-axis Steady Shot like the A99II and can use its on-sensor phase-detect with the LA-EA3 and 5. The A7II seems to have the most optimized version of that old sensor.

The A7RII has a much better sensor (same as the A99II and A7RIII) including better phase-detect.

The LA-EA4 often worked better than the LA-EA3 and 5 on the A7II and A7RII. I might pick up another LA-EA4 to use with my A7RIV because even though the LA-EA5 supports all the fancy new AF features the old discrete phase module still works better in many situations.

Edited by QuietOC - 07 October 2021 at 15:21
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
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Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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Post Options Post Options   Quote Frozenpixels Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 15:38
Ok thanks very much.
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 15:47
It seems the A7r2 is the first camera with passable AF with LA-EA3 and DSLR lenses. The LA-EA4 will work better - it is an option, indeed. I still think the A7r2 still is the best option, the sensor is better and the native AF is better with IBIS. If you only want to use your A-mount lenses with LA-EA4, the A7r is a good option with a good sensor without the IBIS. The A7 and A7 mark 2 have an older sensor but is fine in any other respect. (mark 2 has IBIS)

Sony probably sold more A7's and A7 owners are more likely to update (being early adopters) compared to late A-mount owners.
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Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 16:05
Originally posted by addy landzaat addy landzaat wrote:

It seems the A7r2 is the first camera with passable AF with LA-EA3 and DSLR lenses. The LA-EA4 will work better - it is an option, indeed. I still think the A7r2 still is the best option, the sensor is better and the native AF is better with IBIS. If you only want to use your A-mount lenses with LA-EA4, the A7r is a good option with a good sensor without the IBIS. The A7 and A7 mark 2 have an older sensor but is fine in any other respect. (mark 2 has IBIS)
One downside of the first two generations of α7 series (and most APS-C E mount models) worth a mention is that these use the puny NP-FW50 batteries, where as the newer cameras use the much more powerful NP-FZ100 battery model.
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Post Options Post Options   Quote LAbernethy Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 17:27
Originally posted by Frozenpixels Frozenpixels wrote:

Hey folks, total amateur here, can I ask what your impressions are of the A7? Iíve noticed lots of A7s for sale but virtually no used a850/900ís or a99ís and I want to get into a full frame. I located a used 99 but it needs repair. As I have nearly a dozen Minolta lenses I want to play with.
I think I can use an e-a lens adaptor with decent success?

Thereís a real abundance of A7ís and e lenses in my area and I have to ask why. (Vs no used a mount FF cams)

Do people not like them?

My impressions of the A7? Meh. Poor battery life, expensive native lenses, poor performing adapted lenses, no IBIS, lackluster EVF, so so build and layout, with a sensor about the same as the a850 sensor. The one good thing I can say for it is the rear screen is better than the one on the a850 but not as good as the one on the a99. The poor battery performance is on par with the a99. No one has been able to explain to my satisfaction why the battery performance of the a99 is so poor.
As to the lack of full frame A-Mount on the secondary market? As someone who suffered the Olympus move to mirrorless and hated the adapted experience. For A-mount, I stocked up on New old stock bodies when it became clear no new was coming. To avoid having to switch suddenly and expensively should something happen. I suspect others who felt E-Mount "not ready for primetime" did the same.

Edited by LAbernethy - 07 October 2021 at 17:32
 



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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 18:08
The NP-FZ1000 is no magic. It has about double the capacity as the NP-FW50 at about, wait for it, double the size. Depending on your kind of photography you could bring some extra batteries. Not an option when you're an sports or wedding photographer, but for a lot of other photography not really a problem.

Re. battery life (CIPA):
A7: 340
A99: 500 (better then the A7...)
A7m3:710 (wait, that is about double the A7 )
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Post Options Post Options   Quote LAbernethy Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 19:00
Originally posted by addy landzaat addy landzaat wrote:



Re. battery life (CIPA):
A7: 340
A99: 500 (better then the A7...)

Let's file that in the "Fiction" department.
The a99 has a quarter of the run time of the a850 and half the a77/a77ii. Is it longer lasting than the A7? Yes, but not by that much. That's why the grip for it holds two batteries plus the one in camera where the a77 and a99ii just have the two in the grip.
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 19:15
I never owned the A99, I do not know why this is your experience.

CIPA ratings are just an indication for relative battery life. Not the actual number of pictures. The A900 is almost double at 880. The A99m2 is 490 and the A77m2 is 480. I always found the battery life of the A77m2/A99m2 adequate for my use.
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Post Options Post Options   Quote LAbernethy Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 19:31
I found the a850 excellent. The a77 and a77ii adequate. The a99 poor. I thought it was THAT camera and bought a second; nope, it's the design. I bought the grip but it just weighs a ton.
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Post Options Post Options   Quote Wētāpunga Quote  Post ReplyReply Direct Link To This Post Posted: 07 October 2021 at 21:05
To jump back in to the OP, the observation that there are more A7 cameras than a99s or a900s has a reasonably simple explanation. Many more A7 cameras were sold than than the FF A-mount cameras so there is just more of them in used markets. Especially as it was released in 2013 and many photographers have been able to upgrade to the newer generation E-mount cameras since. That upgrade path for the A-mount wasn't really a thing so I imagine people hold on to their A-mount cameras longer.

Based purely on my experience with the a7R, unless you're going to use the a7 purely as a digital back, on a tripod, with your A-mount lenses, I'd try to get a 2nd or 3rd generation A7 camera instead. They have IBIS stablilisation, better sensors, and their AF-system won't be the limit on using E-mount lenses later if you wished.
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 08 October 2021 at 09:28
Originally posted by Wētāpunga Wētāpunga wrote:


Based purely on my experience with the a7R, unless you're going to use the a7 purely as a digital back, on a tripod, with your A-mount lenses, I'd try to get a 2nd or 3rd generation A7 camera instead. They have IBIS stabilisation, better sensors, and their AF-system won't be the limit on using E-mount lenses later if you wished.

That was my impression when I surveyed the market for an A7xx. The original A7 looked like the closest thing in size and style to an old-fashioned mechanical SLR with a decent digital capability and a good range of small, affordable (non-Sony) wide primes. I may still get one for retro appeal, for those occasions when I'm happy with the same low-light and low-shutter-speed limitations I had in film days.

But coming from the A58 and wanting to use lots of Minolta lenses, the original A7 is just too limited for general use and too much of a backward step. I went for the A7Rii which I picked up new earlier this year for around the same price s/h examples were being offered, and it's a brilliant camera. The LA-EA4 stays on it quite a lot of the time now (I won't bother with LA-EA3 or 5 since I have so few SSM lenses) and I though I didn't initially like the big knobbly base that stops the camera sitting level, I've grown to like it as both a convenient hand-hold and a good place for a tripod.

Yes, there are significant AF mode limitations with the LA-EA4 compared with native FE lenses, but once you get carried away with these issues you'll end up with an LA-EA5 and one of the very few expensive new cameras that support it.
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 08 October 2021 at 09:34
Oh, and re batteries - I never carried a spare battery on the A58 or A900 and rarely even bothered to put a fresh one in before using the camera, but with the small E-mount batteries, a formal battery-management program is virtually essential or you will be disappointed!

I have also found that batteries lose charge in the camera if you leave them in for a few weeks, so I habitually take batteries out of the camera to recharge them when returning home, and put a cheap/nasty/low-capacity battery in instead to keep it alive. I just have to remember to put the Sony one back in before I leave ...

Edited by Miranda F - 08 October 2021 at 09:39
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
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