Tony Northrup's Photography Buying Guide: How to Choose a Camera, Lens, Tripod, Flash, &...
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From Tony Northrup
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (10 deleted Reviews; avg. rating: 4.4)
- Overlapping Review History: reviewed 1 of 9 top products
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Loyalist (3 of 5 reviews for this brand; avg rating: 5.0)
- Overrepresented Participation (posted 5 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Brand Repeaters
92 of the 255 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.
Brand Loyalists
14 of the 255 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.
Brand Monogamists
10 of the 255 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.
We discovered a total of 7 deleted Reviews for this product, with an average rating of 5. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Take-Back Reviewers
103 of the 255 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 56%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 143 reviewers (or 56%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
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- 3%
- Created over 2 days
We counted 255 reviews for this product over the span of 2,791 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.
However, we see the following 2 days exceeding this threshold:In total, we found that 7 reviews were created on just 2 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
15 of the 255 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
(4.9/5)
(3.5/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(4.7/5)
(2.5/5)
(5.0/5)
16 of the 255 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
3% also reviewed:
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2% also reviewed:
SanDisk Extreme PRO 64GB SDXC Flash Memory Card... by SanDisk
2% also reviewed:
Nikon 50mm f/1.8 AF-S NIKKOR FX Lens by Nikon
2% also reviewed:
Giottos Rocket Air Blaster Large - Black by Giotto's
2% also reviewed:
Altura Photo Professional Camera Cleaning Kit for... by Altura Photo
2% also reviewed:
NEEWER 160 LED CN-160 Dimmable Ultra High Power... by Neewer
2% also reviewed:
Yongnuo YN-568EX II 4-Channel TTL Flash Speedlite... by YONGNUO
2% also reviewed:
The Man In The High Castle - Season 1 (4K UHD) by Alexa Davalos
2% also reviewed:
Nikon 35mm f/1.8 AF-S DX Lens by Nikon
35 of the 255 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.